Update editor package and release notes

docs/release-notes-editor.txt

 Editor
 ======
+1.3.1
+- Fix background color of input fields
+- Remove font size property from text elements
+- Add 16px as font size option
+- Textfield and Textarea have transparent background by default
+
 1.3.0
 - Use Roboto as default font
 - [bug] Fix selection after adding/deleting pages/sections

package.json

 {
   "name": "verona-modules-aspect",
-  "editor_version": "1.3.0",
+  "editor_version": "1.3.1",
   "player_version": "1.0.9",
   "scripts": {
     "ng": "ng",