style: 字体间距

src/pages/Center/MyTask/index.less

@@ -37,6 +37,7 @@
         font-size: 0.8rem;
         line-height: 0.8rem;
         font-weight: 600;
+        letter-spacing: 0.05rem;
         font-family: PangMenZhengDao-3, PangMenZhengDao-3;
       }
       .counterText {

src/pages/TaskManage/index.less

@@ -37,6 +37,7 @@
         font-size: 0.8rem;
         line-height: 0.8rem;
         font-weight: 600;
+        letter-spacing: 0.05rem;
         font-family: PangMenZhengDao-3, PangMenZhengDao-3;
       }
       .counterText {