♻️ Make FileProcessor::process handle all visit types

[Gibson431]

This allows the process function to handle all the different possible visit types without excess compute.

[codecov]

Codecov Report

Attention: Patch coverage is 84.72222% with 44 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
core/src/filesystem/media/format/rar.rs	62.00%	19 Missing ⚠️
core/src/filesystem/media/format/pdf.rs	61.53%	10 Missing ⚠️
core/src/filesystem/media/format/zip.rs	84.48%	9 Missing ⚠️
core/src/filesystem/media/format/epub.rs	97.69%	3 Missing ⚠️
core/src/filesystem/media/process.rs	33.33%	2 Missing ⚠️
core/src/filesystem/media/builder.rs	95.23%	1 Missing ⚠️

Files with missing lines	Coverage Δ
core/src/filesystem/media/builder.rs	73.77% <95.23%> (+4.26%)	⬆️
core/src/filesystem/media/process.rs	29.09% <33.33%> (-3.33%)	⬇️
core/src/filesystem/media/format/epub.rs	81.74% <97.69%> (+43.50%)	⬆️
core/src/filesystem/media/format/zip.rs	83.91% <84.48%> (+8.20%)	⬆️
core/src/filesystem/media/format/pdf.rs	23.91% <61.53%> (-5.08%)	⬇️
core/src/filesystem/media/format/rar.rs	55.45% <62.00%> (-6.09%)	⬇️

... and 60 files with indirect coverage changes

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[aaronleopold]

I gave this a look during lunch and think you're headed in the right direction here. I know you mentioned not being fully done, so feel free to give me a nudge when you would like me to take another look.

Also, thanks for adding additional tests 🙂

[Gibson431]

I noticed a lot of the functioned that have been changed aren't actually used anywhere. This does reduce the number of mime_type check duplication. There is still some duplication though I don't know how they could / should be removed.