fix: TaskManager remove indexes for TaskCreated event

Author: imiskii

src/TaskManager.sol

@@ -17,7 +17,7 @@ contract TaskManager {
     bool active;      // Task is active
   }
 
-  event TaskCreated(uint256 indexed taskId, string indexed name, string indexed difficulty, uint256 time, string URI);
+  event TaskCreated(uint256 indexed taskId, string name, string difficulty, uint256 time, string URI);
   event TaskDeactivated(uint256 indexed taskId);
   event TaskSolved(uint256 indexed taskId, address indexed solver);