update web-stream-tools to 0.2.0

[sosnovsky]

After updating web-stream-tools to 0.2.0, build fails with errors:

There are types at '/home/semaphore/git/flowcrypt-browser/node_modules/@openpgp/web-stream-tools/lib/types/index.d.ts', but this result could not be resolved under your current 'moduleResolution' setting. Consider updating to 'node16', 'nodenext', or 'bundler'.

Our currently used "moduleResolution": "node" seems to be outdated, and should be replaced with more modern alternative.