Improve is_admin function and the admin docs

README.md

@@ -24,7 +24,7 @@ Create a "secrets.toml" file:
 username = "bot_username"
 password = "bot_password"
 character = "bot_character"
-admins = ["my_username"]
+admins = ["my_username"] # You may add usernames or UUIDs to this list. The only advantage of using UUIDs is that it will persist accross changes to your username or player alias.
 ```
 
 Then create a secret to pass the file securely to the container.

src/bot.rs

@@ -807,13 +807,18 @@ impl Bot {
 
     /// Determines if the Uid belongs to an admin.
     fn is_user_admin(&self, uid: &Uid) -> Result<bool, String> {
-        let sender_uuid = self
-            .find_uuid(uid)
-            .ok_or("Failed to find uuid")?
-            .to_string();
         let sender_name = self.find_player_alias(uid).ok_or("Failed to find name")?;
 
-        Ok(self.admins.contains(sender_name) || self.admins.contains(&sender_uuid))
+        if self.admins.contains(sender_name) {
+            Ok(true)
+        } else {
+            let sender_uuid = self
+                .find_uuid(uid)
+                .ok_or("Failed to find uuid")?
+                .to_string();
+
+            Ok(self.admins.contains(&sender_uuid))
+        }
     }
 
     /// Moves the character to the configured position and orientation.