🚸 catch inputs with no text

Signed-off-by: peter szemraj <peterszemraj@gmail.com>

app.py

@@ -91,11 +91,15 @@ def proc_submission(
         <div style="background-color: #880808; color: white; padding: 20px;">
         <h3>Warning</h3>
         <p>Input text is too short to summarize. Detected {len(input_text)} characters.
-        Check your input as strange things may happen.</p>
+        Please load text by selecting an example from the dropdown menu or by pasting text into the text box.</p>
         </div>
         """
         logging.warning(msg)
+        logging.warning("RETURNING EMPTY STRING")
         history["WARNING"] = msg
+
+        return msg, "", []
+
     _summaries = summarize_via_tokenbatches(
         tr_in,
         model_sm if "base" in model_size.lower() else model,