chore: issue click & peek overview improvement

[anmolsinghbhatia]

Problem:

• Clicking on an issue didn't open it in a new tab.
• Only a part of the issue card was clickable, limiting user interaction.
• Users had to manually close the issue peek overview.
• Inability to open the issue peek overview for other issues while one was already open.

Solution:

• Enabled opening issues in new tabs with Control Click.
• Expanded clickable area for the entire issue card for improved interaction.
• Integrated an outside click detector for the issue peek overview.
• Implemented quick switching functionality for issue peek overviews.

Other:

• Removed unused variables.
• Code Refactor.

Media: