Make right sidebar 30rem from lagre screens

[harminius]

Fixes https://github.com/MerginMaps/server-private/issues/3047

Makes the right sidebar fixed size (30rem) to ensure roles readability.

[coveralls]

Pull Request Test Coverage Report for Build 17299474715

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 15 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-0.04%) to 94.273%

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Files with Coverage Reduction	New Missed Lines	%
server/mergin/sync/tasks.py	4	86.75%
server/mergin/sync/private_api_controller.py	11	91.26%

Totals
Change from base Build 17259404226:	-0.04%
Covered Lines:	7490
Relevant Lines:	7945

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💛 - Coveralls

[MarcelGeo]

ok... we can live with that probably.