🚸 auto-return error for no text

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

app.py

@@ -80,6 +80,21 @@ def proc_submission(
         tr_in = input_text
         msg = None
 
+    if len(input_text) < 50:
+        # this is essentially a different case from the above
+        msg = f"""
+        <div style="background-color: #880808; color: white; padding: 20px;">
+        <h3>Error</h3>
+        <p>Input text is too short to summarize. Detected {len(input_text)} characters.
+        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,