feat: Modal + ViewportDownloadForm (#1799)

* feat: Modal + ViewportDownloadForm

* styles for image preview box

* modal update & close handler

* open modal for Learn More (search info)

* change modal default alignment

* Update platform/ui/src/components/InputNumber/InputNumber.mdx

* nuke inputNumber and use inputText with refactor

* make input more reusable

* revert inputText "number" stuff

* replace inputText to Input

* fix input spacing + label

* fix modal overlay classes

* fix inline styles

* fix onclick learn more

* fix close icon

* revert transition

* remove inline styles

* remove unecessary stuff

platform/ui/src/components/index.js

@@ -45,6 +45,7 @@ import Tooltip from './Tooltip';
 import Typography from './Typography';
 import Viewport from './Viewport';
 import ViewportActionBar from './ViewportActionBar';
+import ViewportDownloadForm from './ViewportDownloadForm';
 import ViewportGrid from './ViewportGrid';
 import ViewportPane from './ViewportPane';
 
@@ -97,6 +98,7 @@ export {
   Typography,
   Viewport,
   ViewportActionBar,
+  ViewportDownloadForm,
   ViewportGrid,
   ViewportPane,
 };