distro: Add clickable Flathub remote button to more distros

All of them allow its installation via GUI after setting up Flatpak.

Also, reword the instructions a bit

Author: AsciiWolf

data/distro.yml

@@ -12,7 +12,7 @@
         <p><strong>Note:</strong> Ubuntu distributes GNOME Software as a Snap in versions 20.04 to 23.04, and replaced it with App Center in 23.10 and newer—neither of which support installing Flatpak apps. Installing the Flatpak plugin will also install a deb version of GNOME Software, resulting in two "Software" apps being installed at the same time on Ubuntu 20.04 to 23.04, and a single new "Software" app on Ubuntu 23.10 and newer.</p>'
     - name: Add the Flathub repository
       text: "
-        <p>Flathub is the best place to get Flatpak apps. To enable it, run:</p>
+        <p>Flathub is the best place to get Flatpak apps. To enable it, download and install the <a class="btn btn-default" href="https://dl.flathub.org/repo/flathub.flatpakrepo">Flathub repository file</a> or run:</p>
         <terminal-command>flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo</terminal-command>"
     - name: Restart
       text: '
@@ -118,7 +118,7 @@
         <terminal-command>sudo zypper install flatpak</terminal-command>'
     - name: Add the Flathub repository
       text: "
-        <p>Flathub is the best place to get Flatpak apps. To enable it, run:</p>
+        <p>Flathub is the best place to get Flatpak apps. To enable it, download and install the <a class="btn btn-default" href="https://dl.flathub.org/repo/flathub.flatpakrepo">Flathub repository file</a> or run:</p>
         <terminal-command>flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo</terminal-command>"
     - name: Restart
       text: '
@@ -150,7 +150,7 @@
         <terminal-command>sudo apt install plasma-discover-backend-flatpak</terminal-command>"
     - name: Add the Flathub repository
       text: '
-        <p>Flathub is the best place to get Flatpak apps. To enable it, download and install the <a class="btn btn-default" href="https://dl.flathub.org/repo/flathub.flatpakrepo">Flathub repository file</a> or run the following in a terminal:</p>
+        <p>Flathub is the best place to get Flatpak apps. To enable it, download and install the <a class="btn btn-default" href="https://dl.flathub.org/repo/flathub.flatpakrepo">Flathub repository file</a> or run:</p>
         <terminal-command>flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo</terminal-command>'
     - name: Restart
       text: '
@@ -165,7 +165,7 @@
         <terminal-command>sudo dnf install flatpak</terminal-command>"
     - name: Add the Flathub repository
       text: '
-        <p>Flathub is the best place to get Flatpak apps. To enable it, download and install the <a class="btn btn-default" href="https://dl.flathub.org/repo/flathub.flatpakrepo">Flathub repository file</a> or run the following in a terminal:</p>
+        <p>Flathub is the best place to get Flatpak apps. To enable it, download and install the <a class="btn btn-default" href="https://dl.flathub.org/repo/flathub.flatpakrepo">Flathub repository file</a> or run:</p>
         <terminal-command>flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo</terminal-command>'
     - name: Restart
       text: '
@@ -225,7 +225,7 @@
         <terminal-command>sudo eopkg install flatpak</terminal-command>"
     - name: Add the Flathub repository
       text: '
-        <p>Flathub is the best place to get Flatpak apps. To enable it, download and install the <a class="btn btn-default" href="https://dl.flathub.org/repo/flathub.flatpakrepo">Flathub repository file</a> or run the following in a terminal:</p>
+        <p>Flathub is the best place to get Flatpak apps. To enable it, download and install the <a class="btn btn-default" href="https://dl.flathub.org/repo/flathub.flatpakrepo">Flathub repository file</a> or run:</p>
         <terminal-command>flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo</terminal-command>'
     - name: Restart
       text: '
@@ -247,7 +247,7 @@
         <terminal-command>doas apk add discover-backend-flatpak</terminal-command>"
     - name: Add the Flathub repository
       text: "
-        <p>Flathub is the best place to get Flatpak apps. To enable it, download and install the <a class='btn btn-default' href='https://dl.flathub.org/repo/flathub.flatpakrepo'>Flathub repository file</a> or run the following in a terminal:</p>
+        <p>Flathub is the best place to get Flatpak apps. To enable it, download and install the <a class='btn btn-default' href='https://dl.flathub.org/repo/flathub.flatpakrepo'>Flathub repository file</a> or run:</p>
         <terminal-command>flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo</terminal-command>"
     - name: Restart
       text: '
@@ -264,7 +264,7 @@
         <terminal-command>urpmi flatpak</terminal-command>"
     - name: Add the Flathub repository
       text: "
-        <p>Flathub is the best place to get Flatpak apps. To enable it, download and install the <a class='btn btn-default' href='https://dl.flathub.org/repo/flathub.flatpakrepo'>Flathub repository file</a> or run the following in a terminal:</p>
+        <p>Flathub is the best place to get Flatpak apps. To enable it, download and install the <a class='btn btn-default' href='https://dl.flathub.org/repo/flathub.flatpakrepo'>Flathub repository file</a> or run:</p>
         <terminal-command>flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo</terminal-command>"
     - name: Restart
       text: '
@@ -390,7 +390,7 @@
         <terminal-command>sudo apt install gnome-software-plugin-flatpak</terminal-command>"
     - name: Add the Flathub repository
       text: "
-        <p>Flathub is the best place to get Flatpak apps. To enable it, run:</p>
+        <p>Flathub is the best place to get Flatpak apps. To enable it, download and install the <a class="btn btn-default" href="https://dl.flathub.org/repo/flathub.flatpakrepo">Flathub repository file</a> or run:</p>
         <terminal-command>flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo</terminal-command>"
     - name: Restart
       text: '