Updated the scroll Bar of the event calendar and the side navbar.

[AmitSharma512]

What kind of change does this PR introduce?

I have updated the scroll bar of the event calendar and the side navbar.

Issue Number:

Fixes #1551

Snapshots/Videos:

Does this PR introduce a breaking change?

No

Have you read the contributing guide?

Yes

[github-actions]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (5a625c7) 96.74% compared to head (b664078) 96.74%.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #1580   +/-   ##
========================================
  Coverage    96.74%   96.74%           
========================================
  Files          138      138           
  Lines         3688     3688           
  Branches      1123     1125    +2     
========================================
  Hits          3568     3568           
+ Misses         115      114    -1     
- Partials         5        6    +1     

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[Cioppolo14]

@Kevoniat @anwersayeed Can you review this PR?

[AmitSharma512]

@aashimawadhwa @rishav-jha-mech, can you please review the PR ??

[palisadoes]

NOTE Read very carefully

1. We just merged this PR which upgraded the prettier package.
   1. Upgraded prettier from 2.3.2 to 3.2.5 #1599
2. It reformatted over 150 files.

This will put your PR at risk of extensive merge conflicts. Do the following IN THIS ORDER:

1. upgrade your prettier in your local branch to the same version
2. run prettier on your local branch
3. update your local branch with the latest upstream

This will help to reduce the number of existing and future merge conflicts for your PR.

[rishav-jha-mech]

@AmitSharma512 you need to import this into /src/index.ts file

[rishav-jha-mech]

@AmitSharma512 you missed src/LeftDrawer/LeftDrawer.tsx, add custom scrollbar there too

[rishav-jha-mech]

make this camelCase, after this your PR is ready to be merged

[AmitSharma512]

@rishav-jha-mech can you please review it?