Add filtering & Use MIME aliases for the encoding picker

[b6k-dev]

Closes #26

Demo:

2025-05-24.16-05-51.mp4

Two changes introduced in this pr:

• Implementation of filtering on encoding picker using fuzzy.rs (handles both regular names and aliases)
• Whenever the available encodings are fetched using ICU their respective aliases are fetched as well

I'm not sure how to implement (if there even should be) keyboard shortcut handling on the encoding picker screen - the only way to change focus between the search input and the table is to click with the mouse (or maybe I haven't found a way to change the focus using some shortcut that is already implemented). I do however think this is just how the application works, since I have observed the same mouse-only behaviour on the file save modal for example.

I'm open for feedback and happy to iterate further on this one.

[lhecker]

I'm not sure how to implement (if there even should be) keyboard shortcut handling on the encoding picker screen - [...]

As you may have already noticed, this should theoretically be fixed now in the main branch. We're releasing v1.1.0 with mostly bug fixes, including that one. It'll take a while to get to merge this PR (and all the others), due to the number of PRs and since we also maintain other projects.

[DHowett]

THIS IS SO COOL

[b6k-dev]

I'm not sure how to implement (if there even should be) keyboard shortcut handling on the encoding picker screen - [...]

As you may have already noticed, this should theoretically be fixed now in the main branch. We're releasing v1.1.0 with mostly bug fixes, including that one. It'll take a while to get to merge this PR (and all the others), due to the number of PRs and since we also maintain other projects.

I have rebased this branch onto newer commits and can confirm that indeed the keyboard naviagation is fixed.

[lhecker]

After thinking about it over the last weeks, I came to the conclusion that showing MIME names by default would be the closes to what people would expect to see. It's now a lot more decluttered IMO.

[DHowett]

What do those MIME names look like?

[lhecker]

Here's a list: https://icu4c-demos.unicode.org/icu-bin/convexp?s=MIME

[DHowett]

notes from playing with it: matching 0 items accidentally displays all items; up and down and enter should let me select the item without tabbing to the list