chore(www): upgrade server-list to Lit

[sbruens]

I struggled getting the server list to show up when running the old macos client, even when running with --buildMode=release. Upgrading this element to Lit resolved it.

[codecov]

Codecov Report

Attention: 11 lines in your changes are missing coverage. Please review.

Comparison is base (6356371) 32% compared to head (385ae8f) 32%.

Files	Patch %	Lines
src/www/views/servers_view/server_list/index.ts	38%	11 Missing ⚠️

Additional details and impacted files

@@          Coverage Diff           @@
##           master   #1844   +/-   ##
======================================
- Coverage      32%     32%   -1%     
======================================
  Files          45      45           
  Lines        2609    2610    +1     
  Branches      337     337           
======================================
  Hits          859     859           
- Misses       1750    1751    +1     

Flag	Coverage Δ
apple	15% <ø> (ø)
maccatalyst	15% <ø> (ø)
macos	15% <ø> (ø)
unittests	32% <38%> (-1%)	⬇️
www	40% <38%> (-1%)	⬇️

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