feat：重构空气温度处理并改进UI屏幕切换

- 从vars.c和vars.h中移除了空气温度整型变量及其相关的获取/设置函数
- 更新了FlowGlobalVariables枚举，移除了空气温度整型常量
- 修改了main.c中的UI任务，实现了每3秒切换屏幕的机制
- 清理了app_main函数，移除了空气温度整型的设置，仅保留字符串表示形式

components/ui/screens.h

@@ -11,21 +11,45 @@ extern "C" {
 
 enum ScreensEnum {
     _SCREEN_ID_FIRST = 1,
-    SCREEN_ID_MAIN = 1,
-    _SCREEN_ID_LAST = 1
+    SCREEN_ID_TEMPERATURE = 1,
+    SCREEN_ID_HUMIDITY = 2,
+    SCREEN_ID_MOISTURE = 3,
+    SCREEN_ID_INTENSITY = 4,
+    _SCREEN_ID_LAST = 4
 };
 
 typedef struct _objects_t {
-    lv_obj_t *main;
+    lv_obj_t *temperature;
+    lv_obj_t *humidity;
+    lv_obj_t *moisture;
+    lv_obj_t *intensity;
     lv_obj_t *obj0;
     lv_obj_t *obj1;
     lv_obj_t *obj2;
+    lv_obj_t *obj3;
+    lv_obj_t *obj4;
+    lv_obj_t *obj5;
+    lv_obj_t *obj6;
+    lv_obj_t *obj7;
+    lv_obj_t *obj8;
+    lv_obj_t *obj9;
+    lv_obj_t *obj10;
+    lv_obj_t *obj11;
 } objects_t;
 
 extern objects_t objects;
 
-void create_screen_main();
-void tick_screen_main();
+void create_screen_temperature();
+void tick_screen_temperature();
+
+void create_screen_humidity();
+void tick_screen_humidity();
+
+void create_screen_moisture();
+void tick_screen_moisture();
+
+void create_screen_intensity();
+void tick_screen_intensity();
 
 void tick_screen_by_id(enum ScreensEnum screenId);
 void tick_screen(int screen_index);