Bugfix/move styled footer component to resolve build issue

[Urjikoo]

Initially the new styled footer component CustomFooter was initialized in app component because of that the build on github was failing. Therefore it's now initialized right before app component.

Types of changes

• [X] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [X] I have run eslint on the code
• [ ] I have added JSDoc for all of my code (where applicable)
• [ ] I have added tests to cover my changes.

Priority:

• [X] Normal
• [ ] High

Related Issues:

Fixes #___

[codecov[bot]]

Codecov Report

Merging #667 (2a813ca) into develop (8096d72) will decrease coverage by 0.04%. The diff coverage is 95.00%.

:exclamation: Current head 2a813ca differs from pull request most recent head e4ea2b4. Consider uploading reports for the commit e4ea2b4 to get more accurate results

@@             Coverage Diff             @@
##           develop     #667      +/-   ##
===========================================
- Coverage    94.19%   94.15%   -0.04%     
===========================================
  Files          195      196       +1     
  Lines         4602     4606       +4     
  Branches       567      567              
===========================================
+ Hits          4335     4337       +2     
- Misses         149      150       +1     
- Partials       118      119       +1     

Impacted Files	Coverage Δ
...lient/components/pages/utils/deduplicateCourses.ts	90.90% <90.90%> (ø)
src/client/components/App.tsx	96.77% <100.00%> (-0.11%)	:arrow_down:
src/client/components/layout/CustomFooter.tsx	100.00% <100.00%> (ø)
src/client/components/layout/index.ts	100.00% <100.00%> (ø)
.../components/pages/Faculty/FacultyScheduleTable.tsx	100.00% <100.00%> (ø)

... and 1 file with indirect coverage changes

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