fix: remove tsup, replace with esbuild + dts with tsc

[ghiscoding]

• found the correct way to bundle a working hybrid CJS/ESM with esbuild (like before), in order to use type=module in the package.json, we need to add the .jsextension to allimports and finally we also need to clone the index.d.tsfile into copied to ad.cts` file to make both CJS/ESM working properly and have "Are the Types Wrong" be happy about it
• removing tsup and going back to original build will help produce the build we expect

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[github-actions]

Playwright E2E Test Results

78 tests  ±0   78 ✅ ±0   1m 52s ⏱️ ±0s
69 suites ±0    0 💤 ±0 
 1 files   ±0    0 ❌ ±0 

Results for commit 9dc9a54. ± Comparison against base commit 52c15ba.

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