refactor: inline parse

[hyperz111]

Some points in here:

• Maybe we can remove the dist/LICENSES.txt file after this.
• JavaScript output file size is now smaller.
• Only tree-shaking the Windows logic.

Before:

ℹ Build start
ℹ Cleaning 3 files
ℹ dist/main.mjs    16.18 kB │ gzip: 5.16 kB
ℹ dist/main.d.mts   3.18 kB │ gzip: 1.00 kB
ℹ 2 files, total: 19.36 kB

After:

ℹ Build start
ℹ Cleaning 3 files
ℹ dist/main.mjs    8.19 kB │ gzip: 2.94 kB
ℹ dist/main.d.mts  3.18 kB │ gzip: 1.00 kB
ℹ 2 files, total: 11.32 kB

TODO

• Try test this on Windows
• Adding test for parser.

[hyperz111]

cc @43081j