fix: update timezone and remove unused variables in application.yml

[Ram-20062003]

In this PR

• Fix zone timings
• Fix naming and unused config variables

[codecov-commenter]

Codecov Report

Merging #19 (9ea57b0) into main (8b5a839) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##               main      #19   +/-   ##
=========================================
  Coverage     51.90%   51.90%           
  Complexity      320      320           
=========================================
  Files            86       86           
  Lines          1811     1811           
  Branches        174      174           
=========================================
  Hits            940      940           
  Misses          812      812           
  Partials         59       59           

Impacted Files	Coverage Δ
...decharacter/server/schedulers/SchedulingService.kt	100.00% <ø> (ø)
...acter/server/user/public_user/PublicUserService.kt	37.66% <100.00%> (ø)

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