Add a basic date picker modal

[AB1908]

Preview:

tp.date.date_picker(
    title: string,
    format: string,
    throw_on_cancel: boolean,
) => Promise<string>

Tasks left:

• Add tests
• Fix CSS
• Add docs
• Add enter callback handler

Notes:

• I chose to add this under tp.date since it seems to fit in nicely.
• How can I make a release on my repo so that I can continue to use it via BRAT? It appears the workflow needs me to merge this into main and Obsidian also looks for the package.json in master and incrementing the version number on another package would cause the regular installation to fail. I committed it to my personal branch since once it's merged, it's easier to pull in the new master rather than having to rebase or deal with other shenanigans.

[Pritoj]

Is there any reason this is not merged yet?

[Zachatoo]

I'm interested in reviewing this. @AB1908 is this ready for review? I thought I pulled this down about a year ago and it wasn't working, but I could easily be misremembering.

[Zachatoo]

Cleaning up stale PRs.