🐛 Fix auto wrap in git block and tips wrong shape in tips block

src/less/git.less

@@ -54,6 +54,7 @@
           background-color: #3478CD;
           padding: 3px 5px;
           border-radius: 3px;
+          white-space: nowrap;
         }
       }
 

src/less/tips.less

@@ -25,11 +25,14 @@
 
   &&:after {
     font-family: "iconfont", serif !important;
+    width: 20px;
+    height: 20px;
+    line-height: 20px;
+    text-align: center;
     font-size: 14px;
     font-style: normal;
     -webkit-font-smoothing: antialiased;
     -moz-osx-font-smoothing: grayscale;
-    padding: 3px;
     border-radius: 50%;
     color: #F4F4F4;
     background-color: #818181;