Removed redundant resolution pick menu

[Zewatara]

Summary

Removed the redundant resolution pick menu from the main-menu's scene settings.

Testing instructions

Open the Main Menu scene > run the game > Open settings > Check if there is only one resolution drop-down menu.

Additional information

• [X] Changes UI
• [ ] Introduces new feature
• [ ] Removes existing feature
• [x] Has associated resource:
  • closes #470

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.77%. Comparing base (f6d1450) to head (109dee2).
Report is 1 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop     #499   +/-   ##
========================================
  Coverage    87.77%   87.77%           
========================================
  Files           95       95           
  Lines         3206     3206           
========================================
  Hits          2814     2814           
  Misses         392      392           

Flag	Coverage Δ
EditModeTests_Suites_Core	15.31% <ø> (ø)
EditModeTests_Suites_TextDecoder	16.12% <ø> (ø)
PlayModeTests_Suites_Playthrough	57.73% <ø> (ø)
PlayModeTests_Suites_Scenes	59.95% <ø> (ø)
PlayModeTests_Suites_Scripts	68.90% <ø> (ø)

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