feat: Revert Hyperlink color to specific instead of predefined browse…

…r - MEED-2554- Meeds-io/meeds#1116 (#678)

This change is going to revert change made to make Links colors using
predefined browser colors.

platform-ui-skin/src/main/webapp/skin/less/core/helpers.less

@@ -617,7 +617,6 @@
     font-size: revert;
     vertical-align: revert;
     background: revert;
-    color: revert;
   }
 
   ins {
@@ -656,9 +655,6 @@
   }
 }
 .VuetifyApp .v-application .rich-editor-content {
-  a {
-    color: revert;
-  }
   ul, ol {
     margin: 0 0 10px 25px ~'; /** orientation=lt */ ';
     margin: 0 25px 10px 0 ~'; /** orientation=rt */ ';
@@ -684,7 +680,10 @@
       color: @textColor!important;
     }
   }
-  .metadata-tag {
-    color: @primaryColor;
+  a {
+    color: #0782c1;
+    &:visited {
+      color: purple;
+    }
   }
 }