UI: Redesign status bar

This redesigns the status bar to look more modern.

Co-authored-by: Warchamp7 <warchamp2003@hotmail.com>
Co-authored-by: Georges Basile Stavracas Neto <georges.stavracas@gmail.com>
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Internal Server Error - Gitea: Git with a cup of tea
500 Internal Server Error

Gitea Version: 1.28.0+dev-477-g8b6ad49a5f