[IMPROVEMENT] Automatically focus large "Search for packages" box on launch

[sjain882]

Please confirm these before moving forward.

• I have searched for my feature proposal and have not found a work-in-progress/duplicate/resolved/discarded issue.
• This improvement refers to an existing feature. If you want to suggest a new feature, please use this template.
• This improvement is not a bug. If you want to report a bug, please use this template.

Describe the improvement

This box should be keyboard focused by default when the "Discover Packages" page is navigated to.

Describe how this improvement could help users

If the "Discover Packages" page is set as the default application startup page, it means the user can launch UniGetUI and immediately start searching for packages, without having to grab the mouse and click on the search box.

This eliminates a context switch and greatly smoothens the user flow.

[GabrielDuf]

This has been implemented in 2026.1.4

The search box is now automatically focused when opening the "Discover Packages" page, allowing users to start typing immediately without extra clicks.