feat(settings): unify settings icon colors and height of settings items

www/img/icon-alternative-currency.svg

@@ -5,7 +5,7 @@
     <desc>Created with sketchtool.</desc>
     <defs></defs>
     <g id="Page-1" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd">
-        <g id="Icons" transform="translate(-324.000000, -770.000000)" stroke="#8F8F90" stroke-width="0.7">
+        <g id="Icons" transform="translate(-324.000000, -770.000000)" stroke="#9b9bab" stroke-width="0.7">
             <g id="icons/list-items/sync" transform="translate(324.000000, 770.000000)">
                 <g id="Group" transform="translate(0.365217, 0.365217)">
                     <polyline id="Shape" points="10.5913043 11.6869565 0 11.6869565 0 0 16.0695652 0 16.0695652 7.96173913"></polyline>
@@ -19,4 +19,4 @@
             </g>
         </g>
     </g>
-</svg>
+</svg>