test: Test out better preprocessing or urls

app.py

@@ -57,8 +57,8 @@ def _remove_stopwords(txt_list: List[str]):
     return [' '.join([word for word in tweet if word not in stopwords]) for tweet in txt_list]
 
 preprocess_pipeline = [
-    _remove_unk_chars,
     _remove_urls,
+    _remove_unk_chars,
     _remove_punctuation,
     _remove_stopwords,
 ]