Smarter hentag titles

[siliconfeces]

This PR improves the success rate of the hentag plugin, when searching by title.

Before this PR, the plugin just picks the first search result if there's multiple. This usually works fine, but for entries in a series this can result in the wrong result being picked.

To solve this, this PR checks which hit seems to be most similar to the requested title. Still not 100% perfect, of course, but a notable improvement. Also, the magic sauce is added as a reusable function as other plugin makers might find it useful.

[siliconfeces]

It requires a new cpan module, so that might be what causes the failures.

[Difegue]

The actions workflow normally uses a nightly container so cpan packages will work in tests post-merge, but I've had CI fail for a while due to the YAML package we added last time so I'm starting to think this isn't a very good way to proceed 🤓

I'll be modifying the workflow to process the cpanfile before running tests and come back to this PR in a bit.

[Difegue]

@siliconfeces fixed, feel free to rebase/merge on top of dev. ✌️ (can't believe that's not something GH allows maintainers to just do yet..)

[Difegue]

Thanks! This all looks good to me.

There technically already is a remove_spaces method in the existing Utils module, but I'll probably clean up after this PR to remove it in favor of Strings::trim.

[holopin-bot]

Congratulations @siliconfeces, you just earned a holobyte! Here it is: https://holopin.io/holobyte/cllwkl9yi25510fjyfwk0afmk

This badge can only be claimed by you, so make sure that your GitHub account is linked to your Holopin account. You can manage those preferences here: https://holopin.io/account.
Or if you're new to Holopin, you can simply sign up with GitHub, which will do the trick!