Add about dialog component

[wrynearson]

Closes #24

This PR adds an About menu item. On click, it opens as dialog component explaining the product, and provides an info/disclaimer about limitation. On small screens, the dialog component can scroll.

[wrynearson]

Not sure how to manage version bumps with PRs directly to main -> @gadomski do you have any ideas of best practices?

[gadomski]

Not sure how to manage version bumps with PRs directly to main -> @gadomski do you have any ideas of best practices?

Do you mean bumping our dependencies, or bumping the version of our app? In the second case, don't think it matters?

[wrynearson]

Bumping the version of the app. OK, sounds good if it doesn't matter 😄. On other projects, we've bumped the version every time develop is merged into main, but since we don't have a staging environment for this project, we can arbitrarily bump the version of the app after one or several PRs are merged into main.

[gadomski]

On other projects, we've bumped the version every time develop is merged into main, but since we don't have a staging environment for this project, we can arbitrarily bump the version of the app after one or several PRs are merged into main.

Yeah, that's about where I'm at for a simple app like this ... versions are primarily a way to communicate with our users, and since our userbase is presumably pretty low, versions aren't worth more than a cursory effort IMO.