Test: Add more tests for SideNavBar component

[forgeRW]

Description

I added more unit tests for SideNavBar component.

• Add tests for rest of the items
• Add tests for rendering https link and closing a link after clicking it

Related Issues

Related to #2744

Check List

• I have read the Contributing Guidelines and made commit messages that follow the guideline.
• I have run npm run lint:js -- --fix and/or npm run lint:md -- --fix for my JavaScript and/or Markdown changes.
  • This is important as most of the cases your code changes might not be correctly linted
• I have run npm run test to check if all tests are passing, and/or npm run test -- -u to update snapshots if I created and/or updated React Components.
• I have checked that the build works locally and that npm run build work fine.
• I've covered new added functionality with unit tests if necessary.

[codecov-commenter]

Codecov Report

Base: 66.02% // Head: 63.51% // Decreases project coverage by -2.51% ⚠️

Coverage data is based on head (729bcd7) compared to base (fd57b87).
Patch has no changes to coverable lines.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2845      +/-   ##
==========================================
- Coverage   66.02%   63.51%   -2.52%     
==========================================
  Files         118      123       +5     
  Lines        1351     1458     +107     
  Branches      342      364      +22     
==========================================
+ Hits          892      926      +34     
- Misses        422      492      +70     
- Partials       37       40       +3     

Impacted Files	Coverage Δ
src/__fixtures__/page.tsx	94.11% <ø> (-5.89%)	⬇️
...components/ApiComponents/Components/ApiHeading.tsx	0.00% <ø> (ø)
...rc/components/ApiComponents/Components/ApiLink.tsx	0.00% <ø> (ø)
...ents/ApiComponents/Components/SourceLink/index.tsx	0.00% <ø> (ø)
...ApiComponents/Components/VersionSelector/index.tsx	0.00% <ø> (ø)
src/components/ApiComponents/index.tsx	0.00% <ø> (ø)
src/components/Article/index.tsx	100.00% <ø> (ø)
src/components/Banner/index.tsx	100.00% <ø> (ø)
src/components/Codebox/index.tsx	100.00% <ø> (ø)
src/components/EditLink/index.tsx	100.00% <ø> (ø)
... and 72 more

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[ovflowd]

LGTM! Thank you so much for your first contribution!