Toolbar rewrite: (mostly) fixed content, separate config, rich tooltips, and roadmapped tools (#3119)

* Basic implementation of rich tooltips

* Break out config to its own file, add a bunch of items

* Better lower right control tooltip sizing

* Add a bunch of sketch tools to the config

* Fix hotkey collisions and UX polish

* Get tests working again

* A snapshot a day keeps the bugs away! 📷🐛 (OS: ubuntu)

* Re-run CI

* A snapshot a day keeps the bugs away! 📷🐛 (OS: ubuntu)

* We updated how the sidebar buttons' test IDs are generated, fix it post-merge

* fmt

* A snapshot a day keeps the bugs away! 📷🐛 (OS: ubuntu)

* Re-run CI

* A snapshot a day keeps the bugs away! 📷🐛 (OS: ubuntu)

* Re-run CI

* A snapshot a day keeps the bugs away! 📷🐛 (OS: ubuntu)

* Re-run CI

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Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

src/components/AppHeader.tsx

@@ -30,7 +30,7 @@ export const AppHeader = ({
       className={
         'w-full grid ' +
         styles.header +
-        ' overlaid-panes sticky top-0 z-20 px-2 items-center ' +
+        ' overlaid-panes sticky top-0 z-20 px-2 items-start ' +
         className
       }
     >