draft: add keybind to list optional dependencies

[darukutsu]

• needs testing
• needs update to work with multiselect branch
• fix toggle gui quirks

fixes #29 kinda, user is not prompted but can install optdeps manually, with addition of #47 he could select optdeps he wants. Later we could add keybind which would auto-select all optdeps for example Shift+D.

I think code is more cleaner than in #47 since we not storing whole InfoRecord just some parts of it thus smaller size, saves memory. Although we need to add few things to make it work with #47. I will wait for more information on that. I will probably create another branch then and merge multiselect and this together in one pr.

I was thinking about 2 possible reworks:

• merge together entries from structs to InfoRecord so we won't need new types
• simplify structure from feat: add ability to select multiple packages #47 so it doesn't store whole InfoRecord

Demonstration:
https://github.com/user-attachments/assets/c5b98d1d-722c-40e1-9498-54cc096c5ca7

[darukutsu]

#55 sparkled idea in my head and went to rework current concept and merge with it. It allowed me to shorten code around 30 lines of code (whole function... haven't done overal code cleaning so might be probably even more removal of unnecessary code). Plus another features as (ofc if we want not implemented yet but its easy):

• show optional dependencies of optional dependencies
• show make dependencies
• collapse dependencies names

My question is @moson-mo is it better for you to review only code related to "list optional dependencies" here, so I'll cherry-pick only related changes OR i can close this PR and make updates in #55? Because cherry-picking needed changes will result in some duplicate code in both PRs.

This is how it looks for now:

[darukutsu]

Did some quickfixes and code cleaning between #55 and #49.

So before we've got #55+#49:

181-15+106-7 = 265

after git diff main..opt-deps-collapse-repetitive --numstat:

279-28 = 251