feat(widget-builder): Add helper to convert widget to builder state

[narsaynorath]

This lets us put the widget builder state into the URL so it can be parsed by the hook when the builder mounts. To demonstrate this, I've hooked up the "Edit Widget" button which should put the state in the URL, open the new slideout, and put my dev builder in the slideout if you set showDevBuilder in your local storage to true

It should load up with the fields populated from the query (although keep in mind I'm not doing any fancy UI stuff to filter, so e.g. a table widget will still open up and show a "Y-axis" field)

[codecov]

Codecov Report

Attention: Patch coverage is 26.31579% with 14 lines in your changes missing coverage. Please review.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
static/app/views/dashboards/detail.tsx	25.00%	6 Missing ⚠️
...Builder/utils/convertWidgetToBuilderStateParams.ts	0.00%	4 Missing ⚠️
static/app/views/dashboards/dashboard.tsx	25.00%	3 Missing ⚠️
...dashboards/widgetBuilder/components/devBuilder.tsx	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #81478      +/-   ##
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- Coverage   80.37%   80.37%   -0.01%     
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  Files        7230     7231       +1     
  Lines      319598   319611      +13     
  Branches    20778    20780       +2     
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+ Hits       256867   256872       +5     
- Misses      62328    62336       +8     
  Partials      403      403