Add configuration for and handling of other image types

[FinnReinhardtBsc]

• Add multiselect to enable / disable specific image types
• Adjust config to account for different image types
• Add additional config for new image types (and filter image ids accordingly)
• Adjust logic to account for new image types

Based on changes from !2

[FinnReinhardtBsc]

Hello @pykettk,
these are the changes that I added after merging your pull request 🙌 I'd like for you to take a look at them. Let me know what you think about my solution and if you would change anything. I am overall very pleased with how it turned out 😇

I have thoroughly tested it and all my tests were successful ✅

[pykettk]

@FinnReinhardtBsc Looks good to me. I think the only things I'd say aren't massively important:

1. It'd be nice to type hint the $imageType arguments in System/ModuleConfig.php
2. There's probably no need to use CDATA in the comment of the image_types field in system.xml
3. Some of the system.xml fields have had canRestore set to 0 despite there being entries for those fields in config.xml. Providing sensible defaults and allowing merchants to revert to using them is a nice quality of life feature IMO.

[FinnReinhardtBsc]

Thanks for your review, @pykettk!

1. It'd be nice to type hint the $imageType arguments in System/ModuleConfig.php

Good eye, I added the missing types there! 👍

2. There's probably no need to use CDATA in the comment of the image_types field in system.xml

I removed CDATA for the comment field.

3. Some of the system.xml fields have had canRestore set to 0 despite there being entries for those fields in config.xml. Providing sensible defaults and allowing merchants to revert to using them is a nice quality of life feature IMO.

I see your point. When configuring this extension, I personally found it rather annoying to always uncheck the "use system value" box. As I see it, the default for the selected image types and resize mode provide less value than the other defaults do, because it depends a lot on your system.

But I understand that it is a good quality of life feature to have, so I changed them again :)

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I also removed the "Only works on Hyvä Storefronts!" text (as mentioned here). My testing showed, that this functionality is not limited to Hyvä-Themes (although I would always recommend people to use Hyvä, of course :D). I just wanted to hear your take on this, in case I missed something.

Thanks for your review, @pykettk!
If there aren't any other issues, I will merge the changes and create a new release 🎉

[pykettk]

I also removed the "Only works on Hyvä Storefronts!" text

I think that was my bad - I copied part of one of our system.xml files when working on this and overlooked it 😅

Everything else looks good though! 💪