Aurora SpotiRip desktop and web app

- Spotify playlist, library, album and artist browsing with in-app playback
- Song, playlist and album downloads via spotdl with YouTube and Bandcamp fallbacks
- Electron desktop app (castLabs Widevine) with a permanent sidebar layout
- Linux and Windows packaging scripts

components/Collapsible.module.css

@@ -0,0 +1,41 @@
+@layer base {
+  @keyframes collapsible-down {
+    from {
+      max-height: 0;
+    }
+    to {
+      max-height: var(--radix-collapsible-content-height);
+    }
+  }
+  
+  @keyframes collapsible-up {
+    from {
+      max-height: var(--radix-collapsible-content-height);
+    }
+    to {
+      max-height: 0;
+    }
+  }
+  
+  .trigger {
+    cursor: pointer;
+    display: block;
+    appearance: none;
+    border: none;
+    background: transparent;
+    color: inherit;
+  }
+  
+  .content {
+    overflow: hidden;
+  }
+  
+  .content[data-state="open"] {
+    animation: collapsible-down var(--animation-duration-fast) ease-out;
+  }
+  
+  .content[data-state="closed"] {
+    animation: collapsible-up var(--animation-duration-fast) ease-out;
+  }
+  
+}