Fix user dropdown and mobile nav

src/styles/_navbar.sass

@@ -2,7 +2,6 @@
   background: #fff
   height: auto
   min-height: 48px
-  // height: 48px
   +media-breakpoint-up(md)
     height: 56px
   .logo
@@ -10,22 +9,20 @@
     justify-content: center
   .navbar-toggler
     padding: 0
+    border-radius: 0
   .navbar-nav
-    margin-bottom: 15px;
-    margin-top: 15px;
+    margin-bottom: 15px
+    margin-top: 15px
     +media-breakpoint-up(md)
       margin: 0
   .nav-item .nav-link
     font-size: 18px
     color: $dark
-    // padding: 16px 8px 16px 34px
     padding: 3vh 8px 3vh 34px
     +media-breakpoint-up(lg)
       padding: 6px 18px
     &:hover
       color: $muted
-  .dropdown-toggle::after
-    display:none
   .navbar-toggler
     border: 0
     outline: none
@@ -40,5 +37,17 @@
   .collapsing
     transition: none
     display: none
-  .show
-    padding-bottom: 75vh
+  #navbarNav
+    .dropdown-toggle::after
+      display:none !important
+    &.show
+      padding-bottom: 75vh
+  .gravatar
+    width: 32px
+    border-radius: 50%
+#userDropdown
+  .nav-link
+    padding-top: 4px;
+    padding-bottom: 0;
+    padding-right: 0;
+    outline: none;