Improve chat sessions view visual presentation

[rebornix]

The Chat Sessions View currently provides minimal contextual details, making it challenging to quickly understand session context or status. We’d like to enrich this view by adding relevant metadata and visual indicators to improve clarity and user awareness.

Proposal

• Request and implement a new, distinctive icon for the Chat Sessions view (icon request form) Chat sessions view has the same icon as chat #258562
• Display additional metadata for sessions: target branch (particularly useful for pull-request-based sessions), session start time / running duration
• 💪 Support rendering Padawan sessions from all Repos

[osortega]

This is mostly done but moving to next milestone to enable support from all repos

[osortega]

Closing as we are not planning to show sessions from all repos soon

[osortega]

Removing verification-needed, this issue was for aggregated tracking only