V2 update with availble types performance tweaks

[jasonterando]

This PR includes the clipboard-rs 0.2.1 support for disabling the Linux clipboard timeout, and the following:

1. Improved available_types performance by locking once instead of for each clipboard data type
2. Include available types in on_clipboard_change so client knows immediately what clipboard data is available

[jasonterando]

Dropping this for now, until I can get a "clean" implementation working with yarn and pnpm

[jasonterando]

I ended up creating another branch in my fork to support pre-release yarn builds.

[HuakunShen]

I agree this this more convenient, but not sure if i'ts a good idea to run has 5 times in rust for a monitor function. I want the monitor function be as efficient as possible.

Have you tested the delay cost of adding 5 extra has() calls on each platform?
I am Okay with this feature if the extra delay is negligible.

[HuakunShen]

Maybe we can implement a tauri command to get all available types at once instead of calling has for each type.

Or a separate monitor function with available types.

[jasonterando]

Maybe we can implement a tauri command to get all available types at once instead of calling has for each type.

Or a separate monitor function with available types.

I'll do some benchmarking. I took another look and there's function in clipboard-rs called "available_formats" that appears to return all of the formats in one call. If that's the case, we can leverage that, and I think it should be a win-win.

[HuakunShen]

Are these formats consistent on all three platforms?

[jasonterando]

Ugh... you're absolutely right. These have to be mapped "upstream" in clipboard_rs. I can do it for Windows and Linux but I need to get my hands on a Mac, and then I need to work with the clipboard-rs to get that merged in - I just submitted a fix to X11 clipboard images and the maintainer is easy to work with. This will probably take a week or two. I'm thinking I"ll have to add a "get_formats" call in that project that will do the mapping. This has turned into a "pull the string on a sweater" exercise but it's probably worth doing. I'll ping you once I finish things on the clipboard-rs end.