Fix pasting images on web (#4670)

src/view/com/composer/text-input/TextInput.web.tsx

@@ -152,23 +152,22 @@ export const TextInput = React.forwardRef(function TextInputImpl(
         },
         handlePaste: (view, event) => {
           const clipboardData = event.clipboardData
+          let preventDefault = false
 
           if (clipboardData) {
             if (clipboardData.types.includes('text/html')) {
               // Rich-text formatting is pasted, try retrieving plain text
               const text = clipboardData.getData('text/plain')
-
               // `pasteText` will invoke this handler again, but `clipboardData` will be null.
               view.pasteText(text)
-
-              // Return `true` to prevent ProseMirror's default paste behavior.
-              return true
-            } else {
-              // Otherwise, try retrieving images from the clipboard
-
+              preventDefault = true
+            }
             getImageFromUri(clipboardData.items, (uri: string) => {
               textInputWebEmitter.emit('photo-pasted', uri)
             })
+            if (preventDefault) {
+              // Return `true` to prevent ProseMirror's default paste behavior.
+              return true
             }
           }
         },