feat: DH-10205: Add column text alignment to web

[gzh2003]

For DH-10205. Allows users to override the default type-based alignment logic on a per column basis using a context menu.

Text alignment is determined with the following priority order: 1. context menu, 2.ui.table, 3. column type.

[codecov]

Codecov Report

❌ Patch coverage is 33.84615% with 43 lines in your changes missing coverage. Please review.
✅ Project coverage is 44.59%. Comparing base (d65ed40) to head (e3a8abd).
⚠️ Report is 6 commits behind head on main.

Files with missing lines	Patch %	Lines
...d/src/mousehandlers/IrisGridContextMenuHandler.tsx	0.00%	15 Missing ⚠️
packages/iris-grid/src/IrisGrid.tsx	16.66%	9 Missing and 1 partial ⚠️
packages/iris-grid/src/EmptyIrisGridModel.ts	0.00%	5 Missing ⚠️
...ckages/iris-grid/src/IrisGridTableModelTemplate.ts	60.00%	4 Missing ⚠️
...at-context-menus/TextAlignmentFormatContextMenu.ts	42.85%	4 Missing ⚠️
...ode-studio/src/styleguide/MockIrisGridTreeModel.ts	0.00%	3 Missing ⚠️
packages/iris-grid/src/IrisGridProxyModel.ts	50.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2513      +/-   ##
==========================================
- Coverage   44.67%   44.59%   -0.08%     
==========================================
  Files         762      764       +2     
  Lines       42618    42776     +158     
  Branches    10710    10960     +250     
==========================================
+ Hits        19038    19076      +38     
- Misses      23569    23641      +72     
- Partials       11       59      +48     

Flag	Coverage Δ
unit	44.59% <33.84%> (-0.08%)	⬇️

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[mofojed]

Couple minor changes, looks great!

[gzh2003]

Adding tests