feat: 活动页面基础ui

src/main/java/com/openisle/config/ActivityInitializer.java

@@ -16,8 +16,10 @@ public class ActivityInitializer implements CommandLineRunner {
     public void run(String... args) {
         if (activityRepository.findByType(ActivityType.MILK_TEA) == null) {
             Activity a = new Activity();
-            a.setTitle("建站送奶茶活动");
+            a.setTitle("🎡建站送奶茶活动");
             a.setType(ActivityType.MILK_TEA);
+            a.setIcon("https://icons.veryicon.com/png/o/food--drinks/delicious-food-1/coffee-36.png");
+            a.setContent("为了有利于建站推广以及激励发布内容，我们推出了建站送奶茶的活动，前50名达到level 1的用户，可以联系站长获取奶茶/咖啡一杯");
             activityRepository.save(a);
         }
     }

src/main/java/com/openisle/model/Activity.java

@@ -26,6 +26,8 @@ public class Activity {
 
     private String icon;
 
+    private String content;
+
     @Column(name = "start_time", nullable = false)
     @CreationTimestamp
     private LocalDateTime startTime;