Use glyphs of the same size on keyboard shortcuts page

template/templates/common/layout.html

@@ -134,8 +134,8 @@
 
                 <p>{{ t "page.keyboard_shortcuts.subtitle.items" }}</p>
                 <ul>
-                    <li>{{ t "page.keyboard_shortcuts.go_to_previous_item" }} = <strong>p</strong>, <strong>k</strong>, <strong>◄</strong></li>
-                    <li>{{ t "page.keyboard_shortcuts.go_to_next_item" }} = <strong>n</strong>, <strong>j</strong>, <strong>►</strong></li>
+                    <li>{{ t "page.keyboard_shortcuts.go_to_previous_item" }} = <strong>p</strong>, <strong>k</strong>, <strong>&#x23F4;</strong></li>
+                    <li>{{ t "page.keyboard_shortcuts.go_to_next_item" }} = <strong>n</strong>, <strong>j</strong>, <strong>&#x23F5;</strong></li>
                     <li>{{ t "page.keyboard_shortcuts.go_to_feed" }} = <strong>F</strong></li>
                 </ul>