feat: Rename and scope JavaScript/WASM package to `@4mritgiri/npdatet… #27

Job	Run time
Rustfmt	10s
Clippy	28s
Benchmarks	1m 1s
Documentation	30s
Test Suite (windows-latest, stable)	1m 26s
Test Suite (windows-latest, beta)	1m 19s
Test Suite (macos-latest, stable)	41s
Test Suite (ubuntu-latest, stable)	40s
Test Suite (ubuntu-latest, beta)	35s
Test Suite (macos-latest, beta)	1m 14s
	8m 4s

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