Fix emoji picker for Safari.

Use `float:left` instead of flexbox

sass/_emoji.scss

@@ -29,12 +29,13 @@
                     cursor: auto;
                     color: var(--subdued-color);
                     font-size: var(--font-size);
-                    padding: 0.5em 0 0 0.5em;
+                    margin: 0;
+                    padding: 0.75em 0 0 0.5em;
                 }
-                ul {
-                    display: flex;
-                    flex-direction: row;
-                    flex-wrap: wrap;
+                .emoji-picker {
+                    li {
+                        float: left;
+                    }
                 }
                 display: flex;
                 flex-direction: column;
@@ -63,7 +64,10 @@
             }
             .emoji-picker {
                 background-color: white;
-                padding: 0.5em;
+                padding: 0.5em 0 0 0.5em;
+                &:last-child {
+                    padding-bottom: 0.5em;
+                }
                 li {
                     margin-left: 0;
                     cursor: pointer;