fix: Add config file options to bundle-analyzer cli, export types

[suejung-sentry]

Fix up a couple things:

• Couple cleanup items around names, readme text
• Fix exporting types from bundle-analyzer package so they can be used by externally. Convert the ES Modules example to Typescript demonstrating this usage.
• Update CLI to accept a config file that has expanded options - the config json expects an object that matches the shape of the bundle-analyzer-core Options object
• Simplify/fix __dirname resolution which had a bug in the previous implementation
• Adjust where Output.write can optionally emit error instead of swallowing so that the CLI/library can throw this error back to user

[codecov-staging]

Codecov Report

All modified and coverable lines are covered by tests ✅

✅ All tests successful. No failed tests found.

Components	Coverage Δ
Plugin core	96.70% <100.00%> (+<0.01%)	⬆️
Rollup plugin	10.81% <ø> (ø)
Vite plugin	11.02% <ø> (ø)
Webpack plugin	49.88% <ø> (ø)

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 76.98%. Comparing base (8bdad73) to head (6b0a882).
Report is 1 commits behind head on prerelease.

✅ All tests successful. No failed tests found.

Additional details and impacted files

Components	Coverage Δ
Plugin core	96.70% <100.00%> (+<0.01%)	⬆️
Rollup plugin	10.81% <ø> (ø)
Vite plugin	11.02% <ø> (ø)
Webpack plugin	49.88% <ø> (ø)

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[codecov]

Bundle Report

Changes will decrease total bundle size by 749 bytes (-0.01%) ⬇️. This is within the configured threshold ✅

Detailed changes

Bundle name	Size	Change
@codecov/bundler-plugin-core-cjs	46.63kB	33 bytes ⬆️
@codecov/bundler-plugin-core-esm	12.29kB	19 bytes ⬆️
@codecov/example-sveltekit-app-client-esm	714.98kB	2 bytes ⬆️
@codecov/example-sveltekit-app-server-esm	974.85kB	1 bytes ⬆️
@codecov/bundle-analyzer-cjs	4.33kB	192 bytes ⬇️
@codecov/example-bundle-analyzer-cli	511 bytes	732 bytes ⬇️
@codecov/bundle-analyzer-esm	3.11kB	120 bytes ⬆️

[nicholas-codecov]

kinda annoying this yargs doesn't provide any type validation 😭