Adding layer to base style

[Tamir198]

Changes Proposed

Check List

• [x] The title of my pull request is a short description of the changes
• [ ] This PR relates to some issue:
• [x] I have documented the changes made (if applicable)
• [ ] I have covered the changes with unit tests

Added base layer for the body styling inside index.css

[codecov-commenter]

Codecov Report

Patch and project coverage have no change.

Comparison is base (7f89fed) 30.04% compared to head (0c0b501) 30.04%. Report is 2 commits behind head on helm-dashboard-v2.

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## helm-dashboard-v2 #456 +/- ## ================================================== Coverage 30.04% 30.04% ================================================== Files 10 10 Lines 1348 1348 ================================================== Hits 405 405 Misses 902 902 Partials 41 41 ```

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