Remove ‘regex’ key from the ‘search’ option

[jetersen]

In #185 we added a new replacers option, that had two separate sub-keys: regex and search. This simplifies the config down to a single search key that can handle both plain string values, and strings that look like a regular expression.

The regex key can no longer be used.

[toolmantim]

Thanks for the PR @Casz! Why don’t we just change the code in here too? I’d prefer PRs that only change a thing at a time, so it’d be nice to do each one on their own, with a well structured PR title and description for future people wanting to understand the changes.

And then after, we can rebase #193?

[jetersen]

There @toolmantim fixed the code as well :)

[toolmantim]

Thanks @Casz! I just updated the PR description too 🙌🏼