Enhance content management and user interaction features

- Introduced a new content source toggle in the profile and app header to switch between IndeeHub and TopDoc films.
- Updated the content fetching logic to dynamically load content based on the selected source.
- Enhanced the seeding process to include a combined catalog of IndeeHub and TopDoc films, ensuring diverse content availability.
- Improved user interaction by preventing duplicate reactions and ensuring a smoother voting experience across comments and content.
- Added support for Amber login (NIP-55) for Android users, integrating it into the existing authentication flow.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/stores/contentSource.ts

@@ -0,0 +1,26 @@
+import { defineStore } from 'pinia'
+import { ref, watch } from 'vue'
+
+export type ContentSourceId = 'indeehub' | 'topdocfilms'
+
+const STORAGE_KEY = 'indeedhub:content-source'
+
+export const useContentSourceStore = defineStore('contentSource', () => {
+  const saved = localStorage.getItem(STORAGE_KEY) as ContentSourceId | null
+  const activeSource = ref<ContentSourceId>(saved === 'topdocfilms' ? 'topdocfilms' : 'indeehub')
+
+  // Persist to localStorage on change
+  watch(activeSource, (v) => {
+    localStorage.setItem(STORAGE_KEY, v)
+  })
+
+  function setSource(source: ContentSourceId) {
+    activeSource.value = source
+  }
+
+  function toggle() {
+    activeSource.value = activeSource.value === 'indeehub' ? 'topdocfilms' : 'indeehub'
+  }
+
+  return { activeSource, setSource, toggle }
+})