Package distribution as UMD

[labkey-nicka]

Rationale

Universal Module Definitions (UMD) are modules which are capable of working everywhere, be it in the client, on the server or elsewhere.
https://github.com/umdjs/umd

This PR changes package distribution for @labkey/api to use UMD. The package can now fully be built with webpack so I've removed rollup and it's configuration.

Changes

• Use webpack to build a UMD module distribution. Same pattern as is used by @labkey/components.
• Compile source maps from TypeScript.
• Remove rollup build configuration.
• Simplify jest configuration in package.json.
• Package updates. Fixes 39329.
• Nit: Removed console warning about jQuery. This is overly noisy and not helpful when it needs to be. Elected for a runtime error upon usage of loadDOMContext().$ instead. Added test.

[labkey-susanh]

Just a copy-paste update suggestion.

[labkey-susanh]

Suggested change

	// don't minimize the code from components, module/app usages will be doing that if they want to
	// don't minimize; module/app usages will be doing that if they want to