Fix recent searches icon alignment in Safari

Fix https://gitlab.com/gitlab-org/gitlab-ce/issues/30642

app/assets/stylesheets/framework/filters.scss

@@ -246,17 +246,17 @@
   }
 }
 
-.filtered-search-history-dropdown-toggle-button {
+.filtered-search-history-dropdown-wrapper {
+  position: static;
   display: flex;
-  align-items: center;
+  flex-direction: column;
+}
+
+.filtered-search-history-dropdown-toggle-button {
+  flex: 1;
   width: auto;
-  height: 100%;
-  padding-top: 0;
-  padding-left: 0.75em;
-  padding-bottom: 0;
-  padding-right: 0.5em;
+  padding-right: 10px;
 
-  background-color: transparent;
   border-radius: 0;
   border-top: 0;
   border-left: 0;
@@ -264,6 +264,7 @@
   border-right: 1px solid $border-color;
 
   color: $gl-text-color-secondary;
+  line-height: 1;
 
   transition: color 0.1s linear;
 
@@ -275,24 +276,21 @@
   }
 
   .dropdown-toggle-text {
+    display: inline-block;
     color: inherit;
 
     .fa {
+      vertical-align: middle;
       color: inherit;
     }
   }
 
   .fa {
-    position: initial;
+    position: static;
   }
 
 }
 
-.filtered-search-history-dropdown-wrapper {
-  position: initial;
-  flex-shrink: 0;
-}
-
 .filtered-search-history-dropdown {
   width: 40%;