fix(feedback): improve design of feedback flow, correct several logic issues

www/img/icon-send-feedback.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(-666.000000, -770.000000)" stroke="#8F8F90">
+        <g id="Icons" transform="translate(-666.000000, -770.000000)" stroke="#9b9bab">
             <g id="icons/list-items/sync" transform="translate(666.769231, 770.000000)">
                 <g id="Group" transform="translate(0.368286, 0.383523)">
                     <g id="holidays-24px-outline_message" transform="translate(0.298380, 0.949811)">
@@ -20,4 +20,4 @@
             </g>
         </g>
     </g>
-</svg>
+</svg>