Migrate modules/browser

[naman9271]

Fixes #2637

• I started migration of jitsi conference but before that it requires the migration of this file as there are some methods like isFirefox which is unable to detect from browser.
• and while its migration i faced a same issue like ts compliler unable to detect methods that are defined in '@jitsi/js-utils'

[jitsi-jenkins]

Hi, thanks for your contribution!
If you haven't already done so, could you please make sure you sign our CLA (https://jitsi.org/icla for individuals and https://jitsi.org/ccla for corporations)? We would unfortunately be unable to merge your patch unless we have that piece :(.

[naman9271]

@saghul , @jallamsetty1 could you please look into this, like all the OS methods are undetectable by ts-compiler and i have tried directly import the class where th emethods are defined it still not able to detect them......is there anything i am missing

[jallamsetty1]

@saghul , @jallamsetty1 could you please look into this, like all the OS methods are undetectable by ts-compiler and i have tried directly import the class where th emethods are defined it still not able to detect them......is there anything i am missing

It is because the type definitions for these methods are missing in js-utils. I started migrating BrowserCapabilities to TS but I completely dropped the ball - jitsi/js-utils#69. I will try to get that merged soon so that you can proceed with these changes.

[naman9271]

I will try to get that merged soon so that you can proceed with these changes.

Ok, @jallamsetty1 Thanks for the clarification! Let me know once the PR gets merged so I can proceed accordingly.