feat: unify Safari popup with full sidepanel UI

Point Safari's default_popup to sidepanel.html so users get the same
tabbed UI (Home, Vault, Apps, Relays, Settings) instead of the basic
popup. Add min-width/min-height to ensure usable sizing in popup context.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: vveerrgg

distros/chrome/sidepanel.html

@@ -10,6 +10,8 @@
                 height: 100%;
                 margin: 0;
                 overflow: hidden;
+                min-width: 380px;   /* Safari popup minimum */
+                min-height: 580px;  /* Safari popup minimum */
             }
             .sidepanel-layout {
                 display: flex;

distros/safari/manifest.json

@@ -24,7 +24,7 @@
         }
     ],
     "action": {
-        "default_popup": "popup.html",
+        "default_popup": "sidepanel.html",
         "default_icon": {
             "16": "images/toolbar-16.png",
             "19": "images/toolbar-19.png",

distros/safari/sidepanel.html

@@ -10,6 +10,8 @@
                 height: 100%;
                 margin: 0;
                 overflow: hidden;
+                min-width: 380px;   /* Safari popup minimum */
+                min-height: 580px;  /* Safari popup minimum */
             }
             .sidepanel-layout {
                 display: flex;

src/manifest.json

@@ -24,7 +24,7 @@
         }
     ],
     "action": {
-        "default_popup": "popup.html",
+        "default_popup": "sidepanel.html",
         "default_icon": {
             "16": "images/toolbar-16.png",
             "19": "images/toolbar-19.png",

src/sidepanel.html

@@ -10,6 +10,8 @@
                 height: 100%;
                 margin: 0;
                 overflow: hidden;
+                min-width: 380px;   /* Safari popup minimum */
+                min-height: 580px;  /* Safari popup minimum */
             }
             .sidepanel-layout {
                 display: flex;