Improve errors and wording

src/web/routes/dashboard/api/user/models.rs

@@ -65,7 +65,16 @@ pub async fn create_reminder(
     if let Err(e) = channel {
         warn!("`create_database_channel` returned an error code: {:?}", e);
 
-        return Err(json!({"error": "Failed to configure channel for reminders."}));
+        // Provide more specific error messages based on the error type
+        let error_msg = match e {
+            Error::MissingDiscordPermission(permission) => format!(
+                "Please ensure the bot has the \"{}\" permission in the channel",
+                permission
+            ),
+            _ => "Failed to configure channel for reminders.".to_string(),
+        };
+
+        return Err(json!({"error": error_msg}));
     }
 
     let channel = channel.unwrap();