fix(desktop): stop empty dictation from send

Co-authored-by: Kenny Lopez <klopez4212@gmail.com>
Signed-off-by: John Tennant <jtennant@squareup.com>

desktop/src/features/dictation/hooks/useMessageComposerDictation.tsx

@@ -44,6 +44,7 @@ export function useMessageComposerDictation({
 
   return {
     ...dictation,
+    canStopFromSend: isRecording || isStarting,
     prepareToSubmit,
   };
 }

desktop/src/features/messages/ui/MessageComposer.tsx

@@ -518,7 +518,6 @@ function MessageComposerImpl({
   // ── Submit message ──────────────────────────────────────────────────
   const submitMessage = React.useCallback(async () => {
     if (!prepareDictationSubmitRef.current()) return;
-
     const trimmed = syncComposerContentFromEditor().trim();
 
     // Edit mode
@@ -838,13 +837,16 @@ function MessageComposerImpl({
       disabled ||
       media.isUploading ||
       mentionSendFlow.isPreparingMentionSend ||
-      (isContentEmpty && media.pendingImeta.length === 0),
+      (isContentEmpty &&
+        media.pendingImeta.length === 0 &&
+        !dictation.canStopFromSend),
     [
       disabled,
       media.isUploading,
       mentionSendFlow.isPreparingMentionSend,
       isContentEmpty,
       media.pendingImeta.length,
+      dictation.canStopFromSend,
     ],
   );