build(@deephaven/icons): Properly package icons and remove unnecessary files in dist

[mattrunyon]

While updating packages consumed in the docs, I noticed our icons package.json was off. It specified it was a module type (ESM), but exported CJS as .js. This is incorrect as those will be interpreted as ESM by Node. Instead we should be exporting a .cjs file and a .js or .mjs as the main file.

Added an exports section to the package.json to indicate which file is for ESM and which is for CJS. We still need to distribute CJS for Jest tests.

Removed unnecessary files from the distribution. We don't use imports like import vsTrash from '@deephaven/icons/vsTrash'; and the ESM tree shakes, so I removed the individual files exported. They also would have been imported from /icons/dist which is bad practice. Removed the SVG files from the files for the published package as well since they aren't used by anything in production.

BREAKING CHANGE: Any imports/aliasing to @deephaven/icons/dist should be removed and just read the package contents normally (e.g. DHE jest and vite configs for using community packages locally). See the changes to vite and jest configs in this change for how to update

[codecov]

Codecov Report

Merging #1437 (c43d5b2) into main (e3db6bf) will decrease coverage by 0.01%.
Report is 4 commits behind head on main.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #1437      +/-   ##
==========================================
- Coverage   45.71%   45.71%   -0.01%     
==========================================
  Files         511      511              
  Lines       35070    35073       +3     
  Branches     8769     8772       +3     
==========================================
+ Hits        16033    16034       +1     
- Misses      18986    18988       +2     
  Partials       51       51              

Flag	Coverage Δ
unit	45.71% <ø> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

see 3 files with indirect coverage changes

[mofojed]

Publish an alpha and make sure Enterprise still works with the published alpha?

[mofojed]

Suggested change

	// All pacakges except icons use src code
	// All packages except icons use src code

[mattrunyon]

Tested with an alpha and enterprise builds/tests/looks correct.

I put this as a breaking change mostly as a message to update the DHE community packages paths in Vite and Jest (for using the -community scripts). Right now they import from the dist folder directly. I tested these locally w/ the updated configs (matching config in this PR) and they work too