Cannot Create Library on network path

[Loran425]

https://github.com/CyanVoxel/TagStudio/blob/45e765862d7ec2bf2928134a91f0251a4d0b2068/tagstudio/src/core/library.py#L534-L543

Strips leading // from server shares e.g. //<server>/<share> gets normalized to \\\\<server>\\<share> but then gets caught by the above line stripping the leading \\ which in turn causes
https://github.com/CyanVoxel/TagStudio/blob/45e765862d7ec2bf2928134a91f0251a4d0b2068/tagstudio/src/core/library.py#L560-L571
to fail as the address is no longer accurate

swapping from strip to rstrip only removes trailing \\
path = os.path.normpath(path).strip('\\') becomes
path = os.path.normpath(path).rstrip('\\')
Which works for network shares.

[CyanVoxel]

Change merged in #30 ! Thanks for the contribution!