Show the extension info at the bottom of settings section

[Aleksandra0056]

Problem Description

The extension info is not in the bottom of the setting section, but it is only in about:addons.

Proposed Solution

Show “PWAs For Firefox” version number, version number of native version, installation method, homepage, and author in the bottom of settings section (I think settings section under the gear button in “PWAs For Firefox” menu).

Additional Information

(Nothing)

[filips123]

I will add version info (extension, native connector, runtime Firefox, main Firefox) and a few useful project links:

Installation method, OS and DE won't be added because they can't be easily detected.