fix some gui scale issues

[kuronekochomusuke]

• increase the width of the fovHighlightRingsRadii in client setting, so that it can handle large gui scales
• update keyboard shortcut overlay so that it processes any preference changes
• clean up code in planetary conditions overlay code, so it is more similar to the code in keyboard shortcut overlay

[codecov]

Codecov Report

Base: 23.00% // Head: 23.00% // Decreases project coverage by -0.00% ⚠️

Coverage data is based on head (f82695a) compared to base (a5ee353).
Patch coverage: 0.00% of modified lines in pull request are covered.

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #4055      +/-   ##
============================================
- Coverage     23.00%   23.00%   -0.01%     
  Complexity     4813     4813              
============================================
  Files          2264     2264              
  Lines        249502   249505       +3     
  Branches      46325    46325              
============================================
  Hits          57398    57398              
- Misses       190645   190648       +3     
  Partials       1459     1459              

Impacted Files	Coverage Δ
.../megamek/client/ui/swing/CommonSettingsDialog.java	0.00% <0.00%> (ø)
.../client/ui/swing/boardview/KeyBindingsOverlay.java	0.00% <0.00%> (ø)
...ui/swing/boardview/PlanetaryConditionsOverlay.java	0.00% <0.00%> (ø)
...gamek/src/megamek/client/ratgenerator/Ruleset.java	0.00% <0.00%> (ø)

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[HammerGS]

Should we include this in 49.11 since it already has a lot of GUI stuff and this seems to fix/improve those.

[kuronekochomusuke]

they are kind of minor, and you can work around them. but it would be a nicer experience to have them.