remove empty messages and allow non-format messages

src/chat.rs

@@ -209,6 +209,13 @@ pub fn on_send_message(ctx: Arc<Context>, message: &str) -> Result<(), Box<dyn E
 } 
 
 pub fn format_message(enable_ip_viewing: bool, message: String) -> Option<String> {
+    if message.is_empty() {
+        None
+    } else {
+        Some(
+        {
+            let message = message.clone();
+            move || -> Option<String> {
                 let message = sanitize_text(&message);
 
                 let date = DATE_REGEX.captures(&message)?;
@@ -258,6 +265,14 @@ pub fn format_message(enable_ip_viewing: bool, message: String) -> Option<String
                         message.white().blink()
                     )
                 })
+            }()
+        }.unwrap_or_else(|| {
+            format!(
+                "{}",
+                message.white().blink()
+            )
+        }))
+    }
 }
 
 pub fn find_username_color(message: &str) -> Option<(String, String, Color)> {