Feat: Installer script

[ficcdaf]

I think an installer script for Linux users would be nice, especially in the case of wanting to update our installation of textfox. Otherwise, needing to manually clone the repo and copy the files over to our profile every time is a bit tedious. It would really only need a git clone, and then cp -rf chrome user.js $firefox_profile_dir.

If you think it's a good idea, I'm happy to write a bash script that does this and submit a PR. Just let me know!

[adriankarlen]

I am not against this idea, however I do feel that with installer scripts comes some scares to me, like overwriting peoples configs. If you find a way to remotely download the chrome directory, and user.js without overwriting the users config.css file I am open to it.

[ficcdaf]

Since the config.css file isn't actually inside the repository, cp -rf chrome won't actually overwrite it. However, I could also add a check for whether a config.css file already exists and explicitly forbid overwriting it. I'll also automatically back up the firefox profile in case the user isn't happy with textfox and wants to switch it back. I will give writing a script like this a shot :)