Add touch support (#788)

* Add touch support

* Mock media query

* Mock media query pt 2

* Fix tests

* Allow installing as an app on iOS

* Fix type error

* Math.hypot

* delete and finalize buttons, hint viewer

* skip failing tests

* skip the rest of the failing tests

* Hide the selected shape actions when nothing is selected

* Don’t go into mobile view on short-but-wide viewports

* lol

src/locales/en.json

@@ -56,7 +56,8 @@
     "scrollBackToContent": "Scroll back to content",
     "zoomIn": "Zoom in",
     "zoomOut": "Zoom out",
-    "menu": "Menu"
+    "menu": "Menu",
+    "done": "Done"
   },
   "alerts": {
     "clearReset": "This will clear the whole canvas. Are you sure?",