style: update code order for Sass

Due to https://sass-lang.com/documentation/breaking-changes/mixed-decls/

Author: brandyscarney

core/src/css/ionic/link.ionic.scss

@@ -31,6 +31,10 @@
 // -------------------------------------------------------------------------------
 
 @mixin ionic-link {
+  color: globals.$ionic-color-info-400;
+
+  text-decoration: none;
+
   @include link-shared;
 
   // Link: Standalone - Hover
@@ -42,10 +46,6 @@
     }
   }
 
-  color: globals.$ionic-color-info-400;
-
-  text-decoration: none;
-
   // Link: Standalone - Focus
   // -------------------------------------------------------------------------------
 
@@ -77,6 +77,10 @@ a.ionic-link,
 // -------------------------------------------------------------------------------
 
 @mixin ionic-link-underline {
+  color: currentColor;
+
+  text-decoration: underline;
+
   @include link-shared;
 
   // Link: Underline - Hover
@@ -88,10 +92,6 @@ a.ionic-link,
     }
   }
 
-  color: currentColor;
-
-  text-decoration: underline;
-
   // Link: Underline - Focus
   // -------------------------------------------------------------------------------