test(visual): add unclipped activity names visual tests + a11y fixes

[ozyx]

Closes #7455

Describe your changes:

• Adds 2 visual tests covering Gantt Charts w/ unclipped activity names in draft and non-draft status modes.
• Small a11y fix for the inspector pane expand/collapse button
• Add additional dictionaries to cspell that we weren't using

All Submissions:

• Have you followed the guidelines in our Contributing document?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?
• Is this change backwards compatible? For example, developers won't need to change how they are calling the API or how they've extended core plugins such as Tables or Plots.

Author Checklist

• Changes address original issue?
• Tests included and/or updated with changes?
• Has this been smoke tested?
• Have you associated this PR with a type: label? Note: this is not necessarily the same as the original issue.
• Have you associated a milestone with this PR? Note: leave blank if unsure.
• Is this a breaking change to be called out in the release notes?
• Testing instructions included in associated issue OR is this a dependency/testcase change?

Reviewer Checklist

• Changes appear to address issue?
• Reviewer has tested changes by following the provided instructions?
• Changes appear not to be breaking changes?
• Appropriate automated tests included?
• Code style and in-line documentation are appropriate?

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (3cbaa7b) 55.59% compared to head (4a2a046) 55.57%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #7454      +/-   ##
==========================================
- Coverage   55.59%   55.57%   -0.02%     
==========================================
  Files         668      668              
  Lines       26800    26800              
  Branches     2606     2606              
==========================================
- Hits        14899    14894       -5     
- Misses      11185    11190       +5     
  Partials      716      716              

Flag	Coverage Δ		*Carryforward flag
e2e-full	49.02% <ø> (ø)		Carriedforward from 3cbaa7b
e2e-stable	59.06% <ø> (-0.04%)	⬇️
unit	48.54% <100.00%> (-0.05%)	⬇️

*This pull request uses carry forward flags. Click here to find out more.

Files	Coverage Δ
src/ui/layout/PaneContainer.vue	48.80% <100.00%> (ø)

... and 3 files with indirect coverage changes

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[unlikelyzero]

@ozyx Do you have an issue associated with the bug that this fixes?

[unlikelyzero]

Just needs a lint fix

[unlikelyzero]

I'm surprised that we had to do this. I I updated every title that was missing an Aria label

[ozyx]

i was also surprised