Don't disallow mouse events when in compact mode for plots

[shefalijoshi]

Closes #7968 #7969

Describe your changes:

Allow highlights and locking highlight points for plots in compact mode.
Cursor guides and grid lines for stacked plots also fixed.
Synchronized cursor guides and grid lines in compact mode will be done in #7960.
Still disallow pan and zoom in compact mode - this will be handled in #7958.

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Author Checklist

• Changes address original issue?
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[codecov]

Codecov Report

Attention: Patch coverage is 56.25000% with 7 lines in your changes missing coverage. Please review.

Project coverage is 57.58%. Comparing base (5be103e) to head (80e0c87).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
src/plugins/plot/MctPlot.vue	56.25%	3 Missing and 4 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #7975      +/-   ##
==========================================
- Coverage   57.70%   57.58%   -0.12%     
==========================================
  Files         678      678              
  Lines       27428    27426       -2     
  Branches     2691     2692       +1     
==========================================
- Hits        15826    15793      -33     
- Misses      11264    11290      +26     
- Partials      338      343       +5     

Flag	Coverage Δ
e2e-ci	62.82% <ø> (+<0.01%)	⬆️
e2e-full	41.90% <ø> (-0.11%)	⬇️
unit	49.35% <56.25%> (-0.17%)	⬇️

Files with missing lines	Coverage Δ
src/plugins/plot/PlotView.vue	72.00% <ø> (+2.76%)	⬆️
src/plugins/plot/MctPlot.vue	37.06% <56.25%> (-0.14%)	⬇️

... and 13 files with indirect coverage changes

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[scottbell]

Testing by itself:

Screen.Recording.2025-01-07.at.11.16.54.mov

and with the discrete event visualization:

Screen.Recording.2025-01-07.at.11.17.52.mov

it works well! I'll leave it to @unlikelyzero as to whether we need a test, but the code is looking good.