[bug]: broken links in non-english pages apps page language dropdown.

When on the 'apps' section of the electron page (https://electronjs.org/apps/), under the language dropdown menu when under the non-english version of the page (for example when in https://electronjs.org/pt/apps, the dropdowns are incorrect.

1) when clicking a language on the dropdown it redirects you to a route with an error in the path instead of a single slash separating its 2 (expected result: https://electronjs.org/pt/apps/, actual result: https://electronjs.org/pt//apps)
2) when clicking the english selection under the language drop-down menu, it simply directs you to a wrong path, that path being https://apps instead of https://electronjs.org/apps