Added constructed languages category

src/pages/settings/panes/Languages.tsx

@@ -60,6 +60,9 @@ export function Component(props: Props) {
                         <Entry key={x} entry={[x, lang]} {...props} />
                     ))}
             </div>
+            <h3>
+                <Text id="app.settings.pages.language.const" />
+            </h3>
             <h3>
                 <Text id="app.settings.pages.language.other" />
             </h3>