feat: Introduce slot for customizing course tab navigation

[xitij2000]

Adds a new plugin slot (CourseTabsNavigationSlot) to enable customization, modification, or hiding of the course tab navigation.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 91.32%. Comparing base (cfc91c3) to head (ba41152).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1917      +/-   ##
==========================================
+ Coverage   91.30%   91.32%   +0.02%     
==========================================
  Files         344      346       +2     
  Lines        5774     5789      +15     
  Branches     1351     1386      +35     
==========================================
+ Hits         5272     5287      +15     
  Misses        483      483              
  Partials       19       19              

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[brian-smith-tcril]

Overall this looks great! I left a couple comments about the PropTypes -> .tsx conversion, once those are addressed this should be good to land!

[xitij2000]

@brian-smith-tcril I've applied the suggested changes.

[brian-smith-tcril]

There are a few tests that don't set metadataModel when rendering LoadedTabPage directly that should be updated:

frontend-app-learning/src/course-home/outline-tab/OutlineTab.test.jsx

Line 641 in db18c2c

await act(async () => render(<LoadedTabPage courseId={courseId} activeTabSlug="outline">...</LoadedTabPage>, { store }));

frontend-app-learning/src/course-home/outline-tab/OutlineTab.test.jsx

Line 657 in db18c2c

await act(async () => render(<LoadedTabPage courseId={courseId} activeTabSlug="outline">...</LoadedTabPage>, { store }));

frontend-app-learning/src/course-home/progress-tab/ProgressTab.test.jsx

Line 1434 in db18c2c

await act(async () => render(<LoadedTabPage courseId={courseId} activeTabSlug="progress">...</LoadedTabPage>, { store }));

frontend-app-learning/src/course-home/progress-tab/ProgressTab.test.jsx

Line 1448 in db18c2c

await act(async () => render(<LoadedTabPage courseId={courseId} activeTabSlug="progress">...</LoadedTabPage>, { store }));

frontend-app-learning/src/course-home/progress-tab/ProgressTab.test.jsx

Line 1463 in db18c2c

await act(async () => render(<LoadedTabPage courseId={courseId} activeTabSlug="progress">...</LoadedTabPage>, { store }));

frontend-app-learning/src/course-home/progress-tab/ProgressTab.test.jsx

Line 1476 in db18c2c

await act(async () => render(<LoadedTabPage courseId={courseId} activeTabSlug="progress">...</LoadedTabPage>, { store }));

Once those are updated this should be good to land!