feat(webui/homepage&footer): Redesign homepage and footer with dark mode

[Jitmisra]

i have redesigned homepage and footer with dark mode

Monosnap.screencast.2025-06-09.23-41-07.mp4

#315

[git-hulk]

@Jitmisra I have run the new design on my side, and it looks great. But it seems to have some code style warnings when running the build command with npm run build in CI. Could you please resolve them to pass the CI?

[PragmaTwice]

https://github.com/apache/kvrocks-controller/actions/runs/15541346438/job/43774119694?pr=316#step:6:45

Checked these logs. Seems easy to fix : )

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 46.84%. Comparing base (6c56470) to head (2caed09).
Report is 69 commits behind head on unstable.

Additional details and impacted files

@@             Coverage Diff              @@
##           unstable     #316      +/-   ##
============================================
+ Coverage     43.38%   46.84%   +3.45%     
============================================
  Files            37       45       +8     
  Lines          2971     4391    +1420     
============================================
+ Hits           1289     2057     +768     
- Misses         1544     2128     +584     
- Partials        138      206      +68     

Flag	Coverage Δ
unittests	46.84% <ø> (+3.45%)	⬆️

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