fix(education): use downloaded inline js libs

to allow demonstrations in offline environments without having to rely
on `https://cdn.jsdelivr.net/`

Author: texhnolyze

src/bitbots_misc/bitbots_education/static/alpine-resize.min.js

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+set -eEuo pipefail
+
+urls=(
+  "https://cdn.jsdelivr.net/npm/eventemitter2@6.4.9/lib/eventemitter2.min.js"
+  "https://cdn.jsdelivr.net/npm/roslib@1/build/roslib.min.js"
+  "https://cdn.jsdelivr.net/npm/@tailwindcss/browser@4"
+  "https://cdn.jsdelivr.net/npm/@alpinejs/resize@3.x.x/dist/cdn.min.js"
+  "https://cdn.jsdelivr.net/npm/alpinejs@3.x.x/dist/cdn.min.js"
+)
+
+for url in "${urls[@]}"; do
+  filename=$(basename "$url")
+  if [[ ! -f "$filename" ]]; then
+    echo "Downloading $filename from $url..."
+    curl -L -o "$filename" "$url"
+  else
+    echo "$filename already exists, skipping download."
+  fi
+done
+

src/bitbots_misc/bitbots_education/static/alpine.min.js

@@ -4,11 +4,11 @@
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
   <link rel="icon" type="image/svg+xml" href="{{ url_for('static', filename='bitBot_color.svg') }}" />
-  <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/eventemitter2@6.4.9/lib/eventemitter2.min.js"></script>
-  <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/roslib@1/build/roslib.min.js"></script>
-  <script src="https://cdn.jsdelivr.net/npm/@tailwindcss/browser@4"></script>
-  <script defer src="https://cdn.jsdelivr.net/npm/@alpinejs/resize@3.x.x/dist/cdn.min.js"></script>
-  <script defer src="https://cdn.jsdelivr.net/npm/alpinejs@3.x.x/dist/cdn.min.js"></script>
+  <script type="text/javascript" src="{{ url_for('static', filename='eventemitter2.min.js') }}"></script>
+  <script type="text/javascript" src="{{ url_for('static', filename='roslib.min.js') }}"></script>
+  <script type="text/javascript" src="{{ url_for('static', filename='tailwind.min.js') }}"></script>
+  <script defer type="text/javascript" src="{{ url_for('static', filename='alpine.min.js') }}"></script>
+  <script defer type="text/javascript" src="{{ url_for('static', filename='alpine-resize.min.js') }}"></script>
 
   <script type="text/javascript" >
     // Connecting to ROS