chore(extensions): migrate MUI4 to MUI5

[debsmita1]

Hey, I just made a Pull Request!

Resolves: https://redhat.atlassian.net/browse/RHIDP-13745

✔️ Checklist

• A changeset describing the change and affected packages. (more info)
• Added or Updated documentation
• Tests for new functionality and regression tests for bug fixes
• Screenshots attached (for UI changes)

[rhdh-gh-app]

Changed Packages

Package Name	Package Path	Changeset Bump	Current Version
app	workspaces/extensions/packages/app	none	v0.0.0
@red-hat-developer-hub/backstage-plugin-extensions	workspaces/extensions/plugins/extensions	patch	v0.17.1

[sonarqubecloud]

Quality Gate passed

Issues
1 New issue
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

❌ Patch coverage is 60.00000% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 53.92%. Comparing base (201cdbe) to head (ff00821).
⚠️ Report is 1 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3283      +/-   ##
==========================================
- Coverage   53.92%   53.92%   -0.01%     
==========================================
  Files        2379     2379              
  Lines       86125    86126       +1     
  Branches    23913    23913              
==========================================
  Hits        46441    46441              
- Misses      39383    39384       +1     
  Partials      301      301              

Flag	Coverage Δ		*Carryforward flag
adoption-insights	83.58% <ø> (ø)		Carriedforward from 201cdbe
ai-integrations	70.03% <ø> (ø)		Carriedforward from 201cdbe
app-defaults	69.60% <ø> (ø)		Carriedforward from 201cdbe
augment	46.39% <ø> (ø)		Carriedforward from 201cdbe
bulk-import	72.86% <ø> (ø)		Carriedforward from 201cdbe
cost-management	16.49% <ø> (ø)		Carriedforward from 201cdbe
dcm	59.64% <ø> (ø)		Carriedforward from 201cdbe
extensions	61.77% <60.00%> (-0.02%)	⬇️
global-floating-action-button	74.30% <ø> (ø)		Carriedforward from 201cdbe
global-header	61.63% <ø> (ø)		Carriedforward from 201cdbe
homepage	51.52% <ø> (ø)		Carriedforward from 201cdbe
konflux	91.01% <ø> (ø)		Carriedforward from 201cdbe
lightspeed	68.50% <ø> (ø)		Carriedforward from 201cdbe
mcp-integrations	85.46% <ø> (ø)		Carriedforward from 201cdbe
orchestrator	37.34% <ø> (ø)		Carriedforward from 201cdbe
quickstart	62.09% <ø> (ø)		Carriedforward from 201cdbe
sandbox	79.56% <ø> (ø)		Carriedforward from 201cdbe
scorecard	83.84% <ø> (ø)		Carriedforward from 201cdbe
theme	64.54% <ø> (ø)		Carriedforward from 201cdbe
translations	8.49% <ø> (ø)		Carriedforward from 201cdbe
x2a	78.79% <ø> (ø)		Carriedforward from 201cdbe

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

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