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/styles.scss

@@ -356,7 +356,7 @@ button,
   padding: 10px 20px;
 }
 
-@media (max-width: 600px), (max-height: 500px) {
+@media (max-width: 600px), (max-height: 500px) and (max-width: 1000px) {
   aside {
     display: none;
   }