Restore previous window location when re-opening on desktop

[garrettjstevens]

I've been using this change to make working on desktop easier, so I thought I'd put it in as a separate PR.

This adds electron-window-state, which keeps track of the size and location of the window is in when it closes in JBrowse Desktop. When you re-open JBrowse Desktop, it restores the window to the same size and position.

[codecov]

Codecov Report

Merging #2241 (cf95a35) into main (5c8734c) will increase coverage by 0.02%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #2241      +/-   ##
==========================================
+ Coverage   62.89%   62.92%   +0.02%     
==========================================
  Files         484      484              
  Lines       22724    22724              
  Branches     5157     5157              
==========================================
+ Hits        14292    14298       +6     
+ Misses       8162     8156       -6     
  Partials      270      270              

Impacted Files	Coverage Δ
...nts/src/SNPCoverageRenderer/SNPCoverageRenderer.ts	87.65% <0.00%> (+7.40%)	⬆️

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[cmdcolin]

👍

[cmdcolin]

just edited title to reflect it's on desktop