feat(chat): integrate podcast support into chat components

- Updated ChatMessage and ChatWindow components to handle podcast content alongside films and songs.
- Enhanced useContentPanel to extract and manage podcasts, allowing for richer media interactions.
- Added PodcastCard and PodcastGrid components for displaying podcast information.
- Improved UI elements to accommodate podcast selection and detail viewing.
- Updated styles for empty state icons and added new CSS for podcast-related elements.

Made-with: Cursor

packages/core/src/types/content.ts

@@ -52,3 +52,28 @@ export interface Song {
   genres?: string[]
   sources?: SongSource[]
 }
+
+export interface PodcastSource {
+  type: 'fountain' | 'rumble' | 'youtube' | 'podcastindex' | 'castopod' | 'odysee' | 'podverse' | 'ipfs' | 'rss'
+  name: string
+  url: string
+  icon?: string
+}
+
+export interface Podcast {
+  id: string
+  title: string
+  host?: string
+  description?: string
+  coverUrl?: string
+  year?: number
+  episodeCount?: number
+  genres?: string[]
+  sources: PodcastSource[]
+}
+
+export interface PodcastRendererData {
+  podcasts: Podcast[]
+  query?: string
+  totalResults?: number
+}