Add min-height back: Dashboard in a mobile mode needs it

to display note, “powered by Uppy” and list of services properly

packages/@uppy/dashboard/src/style.scss

@@ -116,7 +116,7 @@
   max-width: 100%; /* no !important */
   max-height: 100%; /* no !important */
   // min-width: 290px;
-  // min-height: 400px;
+  min-height: 450px;
   outline: none;
   border: 1px solid rgba($color-gray, 0.2);
   border-radius: 5px;