feat(sidebar): improve settings button style

Author: mtaberna

src/renderer/components/Sidebar/index.js

@@ -34,9 +34,9 @@ const Sidebar = ({
 
     <Link
       to="/settings"
-      className={[styles.SettingsTab, styles.tab].join(' ')}
+      className={[styles.SettingsTab]}
     >
-      S
+      settings
     </Link>
   </div>;
 

src/renderer/components/Sidebar/style.scss

@@ -48,9 +48,16 @@
 }
 
 .SettingsTab {
-  @extend %tab-shared;
-
   font-size: 12px;
-  background-color: #5e63a5;
-  margin-top: auto;
+  text-decoration: none;
+  color: #fff;
+  cursor: pointer;
+  font-size: 12px;
+  margin: auto 20px 20px;
+
+  &:hover {
+    text-decoration: underline;
+    text-underline-position: under;
+  }
+
 }