Created templates of web extensions

I created templates of web extensions and published on GitHub.
Some elements work on only Firefox, so delete it if you use this for excluding Firefox.

General:
https://github.com/Soushi-Atsumi/General-Web-Extension-Template
Popup:
https://github.com/Soushi-Atsumi/Popup-Web-Extension-Template
Sidebar:
https://github.com/Soushi-Atsumi/Sidebar-Web-Extension-Template

Search In Sidebar Ver2.0 Released

New Features in Ver 2.0

・Features

・Options

You can define preferences for the extension in the page of add-on.
To fix a search engine, you can search in the sidebar quicker.

・Others

・For Developers

Japanese files and English files exist until this version, but all descriptions are moved to message.json and files of "_ja" have been omitted.
Information of search engines have been written in json files.
The target version is fixed to 60.0 or higher.

https://addons.mozilla.org/en-US/firefox/addon/search-in-sidebar/