remove save btn and move cancel

[Carla-Moz]

Also removed styles related to save cancel pair; updated search component and compare button files; removed staging state since save is no longer needed

Resolved comments guide: The revised PR does the following:

Please see resolved comments commit.

• [x] Combined Cancel and Compare into one component CancelAndCompareButtons
• [x] Removed unnecessary props from CancelAndCompareButton and added HasCancelButton to both CompareWithBase and CompareOverTime
• [x] moved the cancel and compare styles from global styles folder to the component instead.
• [x] moved button padding styles to contained override styles for the buttons

Update: I don't think I made it clear that I would handle the global edit button in a separate PR but I've gone ahead and handle it in this PR based on the comments. I apologize for the extra review.

This PR now closes:

• [x] Remove the save button in the edit mode
• [x] Results: Replace edit buttons with one global edit button

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[codecov[bot]]

Codecov Report

Attention: Patch coverage is 94.11765% with 2 lines in your changes missing coverage. Please review.

Project coverage is 91.80%. Comparing base (8dd8ace) to head (ed0c9a1).

Files	Patch %	Lines
src/components/Search/CompareOverTime.tsx	60.00%	2 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## beta #667 +/- ## ========================================== - Coverage 91.98% 91.80% -0.19% ========================================== Files 69 68 -1 Lines 1598 1586 -12 Branches 285 285 ========================================== - Hits 1470 1456 -14 - Misses 102 104 +2 Partials 26 26 ```

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[julienw]

I wasn't sure how ready the PR was but still went through it and gave a few comments.

I thought we agreed that we didn't want to change edit/cancel that much for the MVP (just removing the Save button), but well I'm not opposed.

[Carla-Moz]

I wasn't sure how ready the PR was but still went through it and gave a few comments.

I thought we agreed that we didn't want to change edit/cancel that much for the MVP (just removing the Save button), but well I'm not opposed.

I decided to go ahead and do this because while I was working on the edit feature for CompareOverTime, it didn't make sense to replicate an edit feature that we would revamp so I wanted it out of the way. Both components share many of the same edit comps, config, etc.