Links to category settings were created using the category name. If the name was a single word, the link would be valid (regardless of capitalization).
For example, if the category was named `Awesome`
`/c/Awesome/edit/settings`
is a valid URL as that is a case-insensitive match for the category slug of `awesome`.
However, if the category had a space in it, the URL would be
`/c/Awesome%20Name/edit/settings`
which does not match the slug of `awesome-name`.
This change uses the category slug, rather than the name, which is the expected behaviour (see `Category.find_by_slug_path`).
It's very easy to forget to add `require 'rails_helper'` at the top of every core/plugin spec file, and omissions can cause some very confusing/sporadic errors.
By setting this flag in `.rspec`, we can remove the need for `require 'rails_helper'` entirely.
We aren't translating these settings, so it makes more sense to move them into the code. I added an instance method so plugins can add mappings for custom reasons.
We relied on backticks to identify and replace site setting names with links. Unfortunately, some translations don't follow this convention, breaking this feature.
Additionally, this lets us linkify `category settings` and `watched words` without using HTML in the translations.
You may notice that I split the texts we want to linkify into two groups. I did this on purpose to emphasize those that should be translated (regular_links) from those who don't (site_settings_link). If you can think of a better solution, I'm open to suggestions.
