[FEATURE] Collection of "Nice to have" things

[Craftsman96]

Is your feature request related to a problem?

Not really

Describe the solution you'd like

• Remove system directories from selection dialog when creating a lib
• Add the db timeout setting to the config
• Ability to remove multiple libs at once
• Deduplication feature maybe?
• Skip N levels during scan, relative to library directory
• Disambiguate what deleting a library does

Describe alternatives you've considered

No response

Where would this feature be implemented?

• Web App
• Mobile App
• Server
• Documentation

Additional context

No response

[Craftsman96]

Delete library

Permanently delete this library and all its contents. This action cannot be undone

-> add that the media wont be deleted from the disk

[Craftsman96]

Add the ability to ignore directories. For example: "parent/A/series_a-z", "parent/B/series_a-z", "parent/C/series_a-z" i want to add "parent" as series based library and stump should ignore "parent/[A-Z]/" -> The result should be the same as if all the series were located directly in the parent folder.