Fixed Merge conflict with the develop branch

[rishav-jha-mech]

What kind of change does this PR introduce?
Migration of Bootstrap 4 to 5
Removal of redundant libraries such as Popper.js and React-Modal
Migration of components from plain html to components imported from Bootstrap 5

Issue Number:

Fixes None

Did you add tests for your changes?

Yes

Snapshots/Videos:

None

If relevant, did you update the documentation?

No

Summary

Migration and removal of redundant libraries.

Does this PR introduce a breaking change?

Class based modals wont work from now, other than that no breaking change.

Other information

Have you read the contributing guide?

Yes

[github-actions]

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[codecov]

Codecov Report

Merging #926 (8ae39ae) into adminUI-redesign (75bc4d6) will increase coverage by 0.05%.
The diff coverage is 94.48%.

@@                 Coverage Diff                  @@
##           adminUI-redesign     #926      +/-   ##
====================================================
+ Coverage             92.95%   93.01%   +0.05%     
====================================================
  Files                    65       65              
  Lines                  1462     1488      +26     
  Branches                371      377       +6     
====================================================
+ Hits                   1359     1384      +25     
- Misses                   98       99       +1     
  Partials                  5        5              

Impacted Files	Coverage Δ
...mponents/UserPasswordUpdate/UserPasswordUpdate.tsx	83.33% <60.00%> (-7.15%)	⬇️
...rc/components/AddOn/core/AddOnStore/AddOnStore.tsx	25.37% <66.66%> (ø)
...rc/components/AddOn/core/AddOnEntry/AddOnEntry.tsx	60.00% <71.42%> (ø)
src/screens/Roles/Roles.tsx	96.00% <83.33%> (ø)
src/components/AdminNavbar/AdminNavbar.tsx	84.90% <88.23%> (+0.29%)	⬆️
src/utils/StaticMockLink.ts	84.61% <88.88%> (+1.07%)	⬆️
src/screens/OrgPost/OrgPost.tsx	93.44% <89.47%> (+0.33%)	⬆️
src/screens/Requests/Requests.tsx	94.00% <91.66%> (+0.25%)	⬆️
src/App.tsx	100.00% <100.00%> (ø)
src/components/AddOn/AddOn.tsx	100.00% <100.00%> (ø)
... and 44 more

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[rishav-jha-mech]

The latest develop branch is merged into adminUI-redesign branch, I have fixed all the merge conflicts, now please merge this PR.

After this PR is merged I will open another PR, to merge my develop branch (which had my adminUI-redesign merged into it) into organization's develop branch.

The unauthorized file change error is because another contributor had modified eslintrc.json file, as a part of their PR to develop branch.

[palisadoes]

@anwersayeed @muskan399 Please review