Update WorkspaceWidget to support sticky workspaces

[dalyIsaac]

The WorkspaceWidget now shows the workspaces which can be opened on the monitor the Bar is open on.

The legacy API was removed from WorkspaceWidgetViewModel as part of this work.

[codecov]

Codecov Report

Attention: Patch coverage is 97.70115% with 2 lines in your changes missing coverage. Please review.

Project coverage is 80.52%. Comparing base (1fe72a1) to head (40cb4f5).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/Whim/Store/MapSector/MapPickers.cs	96.87%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1072      +/-   ##
==========================================
- Coverage   80.52%   80.52%   -0.01%     
==========================================
  Files         283      283              
  Lines       12655    12715      +60     
  Branches     1458     1464       +6     
==========================================
+ Hits        10191    10239      +48     
- Misses       2274     2286      +12     
  Partials      190      190              

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