Use a newer version of Tabler UI (so Bootstrap 5)

Is your feature request related to a problem? Please describe.

No

Describe the solution you'd like

Make an update to use latest Tabler version (which uses bootstrap 5). Right now Nginx Proxy Manager uses an old version of tabler and bootstrap 4. For a more modern and beautiful UI with no problems, i would suggest to use a newer version of Tabler. (This is purely to make the UI look even better than it actually look, this isnt very urgent)

Describe alternatives you've considered

No alternatives.

Additional context

Newer versions of Tabler uses Bootstrap 5.