[Glitch] Redesign admin instances area

Port SCSS changes from f2ec1803cb

app/javascript/flavours/glitch/styles/admin.scss

@@ -151,6 +151,20 @@ $no-columns-breakpoint: 600px;
       font-weight: 500;
     }
 
+    .directory__tag a {
+      box-shadow: none;
+    }
+
+    .directory__tag h4 {
+      font-size: 18px;
+      font-weight: 700;
+      color: $primary-text-color;
+      text-transform: none;
+      padding-bottom: 0;
+      margin-bottom: 0;
+      border-bottom: none;
+    }
+
     & > p {
       font-size: 14px;
       line-height: 18px;

app/javascript/flavours/glitch/styles/dashboard.scss

@@ -39,6 +39,7 @@
     color: $primary-text-color;
     font-family: $font-display, sans-serif;
     margin-bottom: 20px;
+    line-height: 30px;
   }
 
   &__text {