Hide emoji-mart preview footer

Signed-off-by: marcin mikołajczak <git@mkljczk.pl>

app/soapbox/features/emoji/components/emoji-picker-dropdown.tsx

@@ -247,6 +247,8 @@ const EmojiPickerDropdown: React.FC<IEmojiPickerDropdown> = ({
             set='twitter'
             theme={theme}
             i18n={getI18n()}
+            skinTonePosition='search'
+            previewPosition='none'
           />
         )}
       </RenderAfter>