Support for embedding links and references in text editor (#9003)

Signed-off-by: Victor Ilyushchenko <alt13ri@gmail.com>

plugins/text-editor-assets/src/index.ts

@@ -46,5 +46,7 @@ loadMetadata(textEditor.icon, {
   MergeCells: `${icons}#union`,
   SplitCells: `${icons}#divide`,
   Brush: `${icons}#brush`,
-  TextStyle: `${icons}#textStyle`
+  TextStyle: `${icons}#textStyle`,
+  LinkPreview: `${icons}#link`,
+  EmbedPreview: `${icons}#linkEmbed`
 })