Add context menu support.

[Hanzalah-Adalan]

I think it would be cool if we could open the associated client app without first having to open the page and from there we click "Launch App" button, the flow feels a bit less natural IMHO.

I just mocked up the concept in photoshop for you guys to get a rough idea about this:

The documentation to implement the context menu is available here: https://developer.chrome.com/extensions/contextMenus

PS: Google doc excerpt:

You can create as many context menu items as you need, but if more than one from your extension is visible at once, Google Chrome automatically collapses them into a single parent menu.

so the actual result wouldn't be the same as the picture I attach here, since the menu items will get stacked into a sub menu item if there's more than one items provided by the extension.

Lastly, I'm sorry for not adding the appropriate label for this issue since I don't have write access to this repo as recommended on the Readme section of this project. This should be a feature-request btw.

[Arlodotexe]

I actually like this idea, it shouldn't be too hard to implement. I'll update this thread when I make some progress on it.