[FR] Allow choosing default tab at startup

[thatAkiraFox]

Is your feature request related to a problem? Please describe.
I basically never use the "Songs" tab view, as I prefer to play songs by album.

Describe the solution you'd like
Would be useful to have the ability to set a tab as default when the app is opened.

Describe alternatives you've considered
Allowing to reorder tabs.
When the app opens it always starts on the leftmost tab, so when reordering we could use this mechanism to basically set a custom default tab (aka moving the preferred default tab at the start of the tab list).

Additional context
None.

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