feat: Updated UI

[alexandrtovmach]

Thank you for your amazing extension, here UI updates for the configuration page (because it looks very poor, and it's scare potential users). I decided to help with that, and here we go!

DRAFT: Don't merge this PR, I need to investigate about modal functionality

[ray-lothian]

True, the options page needs a new look. Note that we cannot load remote resources and it is not recommenced to customize elements on the options page. There are many different browsers and each has its styling.

Let me work on the option's UI based on your suggestions. You can modify the new design.

[alexandrtovmach]

Could you provide me with a link to limitations of extensions styling, to not waste time for me, thanks

[alexandrtovmach]

From my quick experience with it, all button color styling and modal window blocking by some policy

[ray-lothian]

It is not allowed to have remote resources in your extension. Even if the policy is not blocking it, the extension will get rejected due to privacy concerns.

Could you provide me with a link to limitations of extensions styling, ...

It is not a limitation. It is more of having the options page of all extensions looks similar to the users of the browser. You can definitely overwrite all the browser's styles, but for such a simple options page it is not recommended. btw, I am trying to rewrite some parts to make it more intuitive rather than just restyling.

https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/user_interface/Browser_styles

[greenfox1505]

I was about to create a pull request that added

  "options_close_blocked": {
    "message": "Close after (seconds):"
  },

That's probably not worth it if this is coming any time soon?

[ray-lothian]

@greenfox1505 to add the (seconds) part?
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