[Feature]: Improve channel "About" tab (complete channel Stats, Links section, and clickable description URLs)

[Michalych647]

Before submitting

• I searched existing issues and discussions for this request.
• This request describes one focused feature or improvement.

Problem

The current "About" tab on channel pages is incomplete and lacks essential channel information:

1. The channel description is displayed, but links (HTTP/HTTPS URLs) inside the text are not highlighted or clickable.
2. The "Stats" section only displays the total subscriber count, missing key channel analytics.
3. The "Links" section is completely missing or empty, making it impossible to view and open external social media links (e.g., Telegram, Discord, Instagram).

Proposed behavior

1. Make URLs (http:// and https://) inside the channel's About description text clickable and highlighted in blue.
2. Expand the "Stats" section to display full channel metadata:
   • Country / Location
   • Registration date / Joined date
   • Total channel view count (sum of all video views)
3. Implement the "Links" section to render all official channel links (Telegram, Discord, Instagram, websites, etc.) with clickable navigation.

Relevant area

Subscriptions or playlists

Alternatives considered

idk

Privacy, security, and resource impact

None

Additional context

The About tab should match standard YouTube/Invidious channel profiles where links, view counts, join dates, and description URLs are fully formatted and interactive.