Add more filtering options

[ClementTsang]

Describe the feature request

Why should we consider this feature request? Describe why, and/or how you think this feature will solve the issue, or overall improve the application:

More filtering options could be nice. For example, allow filtering things so we only see processes that are >1% CPU usage.

Additional context/details

Provide any additional context or details here. What needs to be done, why, etc:

Adding this might require rethinking how we currently deal with searching by x category. Since we currently only have two categories - PID and name - it's easy, just make TAB a toggle.

This changes if we add multiple search categories. How do we manage which thing we're searching? Do we stay backwards-compatible? Or just replace it with an entirely new system? (I'm leaning towards the latter tbh)

• One possible idea (that I personally don't really like but it's the easiest) is we search based on some prefix. Want CPU% filtering? Do some query like cpu%<5. This is similar to how top does it. Why don't I like it? I think it's too verbose, personally, and maybe unintuitive?

• Another is to add some kinda TUI selector within the search bar to allow for specific types of searching for each category. So for example, ctrl-c gives CPU , ctrl-m gives memory, etc. This is probably one of the better ways (IMO). Would need some redesigning of the search bar though as it might be too unintuitive? Unless I literally show all hotkeys there. Also, I'm starting to overload the whole ctrl-x space so that might be a thing to consider.

• Just make tab and ctrl-tab to cycle through. Easy to do I guess but might be kinda dumb tbh? idk.