fix: enhance file uploader to accept multiple files and specific types

classes/Seo_Off_Page.py

@@ -81,7 +81,7 @@ class SeoOffPageAnalyst:
         with col1:
             st.write("") # FOR SPACING
             st.write(self.data_src)
-            self.uploaded_files = st.file_uploader(self.analyst_description, print("in"))
+            self.uploaded_files = st.file_uploader(self.analyst_description, type=['pdf', 'csv'], accept_multiple_files=True)
             if self.uploaded_files:
                 upload.multiple_upload_file(self.uploaded_files)