navigator: unify timeout waiting for payload to execute mission item command

Used for winch, gripper, gimbal to reach the desired state before continuing the mission.
Ideally we'd have feedback from all these components and not just a feed-forward delay.

src/modules/navigator/mission_params.c

@@ -132,17 +132,6 @@ PARAM_DEFINE_FLOAT(MIS_YAW_TMT, -1.0f);
  */
 PARAM_DEFINE_FLOAT(MIS_YAW_ERR, 12.0f);
 
-/**
- * Timeout for a successful payload deployment acknowledgement
- *
- * @unit s
- * @min 0
- * @decimal 1
- * @increment 1
- * @group Mission
- */
-PARAM_DEFINE_FLOAT(MIS_PD_TO, 5.0f);
-
 /**
  * Landing abort min altitude
  *
@@ -157,14 +146,19 @@ PARAM_DEFINE_FLOAT(MIS_PD_TO, 5.0f);
 PARAM_DEFINE_INT32(MIS_LND_ABRT_ALT, 30);
 
 /**
- * Time in seconds allowed for the gimbal to reach its commanded attitude before the mission resumes.
+ * Timeout to allow the payload to execute the mission command
  *
- * Time allocated for a gimbal command to execute within a mission before resuming.
- * This ensures the gimbal has reached the commanded orientation before beginning to take pictures.
+ * Ensure:
+ *   gripper: NAV_CMD_DO_GRIPPER
+ *     has released before continuing mission.
+ *   winch: CMD_DO_WINCH
+ *     has delivered before continuing mission.
+ *   gimbal: CMD_DO_GIMBAL_MANAGER_PITCHYAW
+ *     has reached the commanded orientation before beginning to take pictures.
  *
  * @unit s
  * @min 0
  * @decimal 1
  * @group Mission
  */
-PARAM_DEFINE_FLOAT(MIS_GIM_WAIT_T, 0.0f);
+PARAM_DEFINE_FLOAT(MIS_COMMAND_TOUT, 0.f);