cheogram-www

Set app name and window name to "Cheogram". Local dev server is
localhost:3000, but I told it to run build before building the tauri dev
version instead of npm run dev. This would require you to then be
running npx serve yourself separately.

I always do the full build anyway because dev mode doesn't really work
for us at all.

After running command and running build I got an error about the package
identifier (`tauri.conf.json#/identifier`). I don't know why init
doesn't ask you to set it, so I set that and included in this commit.

Used our app icons from the iOS app, and added some other things like
setting the title bar to be purple.

Matched the versions to what we have in package.json