chore: allow custom hosts to send extentions requests

[jvelezpo]

Resolves #209
Relates to #221

Allows the extension to send request to other host different to wakatime.com, example: https://wakapi.dev/api/compat/wakatime/v1

Why only "permissions": ["<all_urls>"... in FF? Chome aff <all_urls> to origins by default so we only need to add it to FF

solves this issue with extensions and request permissions on demand error: permissions.request may only be called from a user input handler

[jvelezpo]

@muety this is a simpler version of your PR, it allows the extension to set the baseUrl to something like https://wakapi.dev/api/compat/wakatime/v1 and it will work

Please review

[muety]

Looks good to me, but I'm confused by that fact that you apparently don't have to request the <all_urls> in Chrome? Can a plugin always request any host it likes without asking for permission? Sure about that?

[jvelezpo]

Looks good to me, but I'm confused by that fact that you apparently don't have to request the <all_urls> in Chrome? Can a plugin always request any host it likes without asking for permission? Sure about that?

Here is a console.log statement from chrome getting all permissions, <all_urls> is added by default in chrome