update app imu_ahrs icon

Author: Neutree

projects/app_imu_ahrs/app.yaml

@@ -2,7 +2,7 @@ id: imu_ahrs
 name: IMU AHRS
 name[zh]: 姿态解算
 version: 1.0.3
-#icon: assets/hello.png
+icon: assets/icon.png
 author: Sipeed Ltd
 desc: IMU AHRS
 desc[zh]: IMU 姿态解算

projects/app_imu_ahrs/assets/icon.png

@@ -36,6 +36,8 @@
         continue
     app_info_str += f'[{app_info["id"]}]\n'
     valid_keys = ["name", "version", "icon", "author", "desc"]
+    if not "icon" in app_info:
+        app_info["icon"] = "/maixapp/share/icon/icon.json"
     for k, v in app_info.items():
         valid = False
         for valid_k in valid_keys: