Fix a typo: "probram"

src/stock.rs

@@ -404,7 +404,7 @@ impl Context {
     pub async fn update_device_chats(&self) -> Result<(), Error> {
         // check for the LAST added device message - if it is present, we can skip message creation.
         // this is worthwhile as this function is typically called
-        // by the ui on every probram start or even on every opening of the chatlist.
+        // by the UI on every program start or even on every opening of the chatlist.
         if chat::was_device_msg_ever_added(&self, "core-welcome").await? {
             return Ok(());
         }