Download pages for both launcher and server

[itsneufox]

Added download pages for both the server and launcher, each showing the two most recent releases with older ones automatically collapsed behind a "See X older releases" button. The number of initially visible releases can be adjusted via the INITIAL_VISIBLE_RELEASES const.

A README with instructions on how to add new releases has also been included.

Translations for pt-BR have been added (both UI keys and all release notes). The remaining locales should add the following translation keys to their respective code.json and the release files can be translated too (refer to the readme inside frontend\content\releases\README.md):

Key	Default
downloads.server.pageTitle	open.mp Server
downloads.server.pageSubtitle	Host your own GTA San Andreas multiplayer server.
downloads.launcher.pageTitle	open.mp Launcher
downloads.launcher.pageSubtitle	Play GTA San Andreas multiplayer on open.mp and SA-MP servers.
downloads.latestBadge	LATEST
downloads.releaseDate	Released {date}
downloads.release.highlights	Highlights
downloads.release.viewChangelog	View full changelog
downloads.release.viewOnGitHub	View release on GitHub
downloads.release.github	GitHub
downloads.release.dynSslNote	* The DynSSL version requires libssl to be installed on your Linux distribution.
downloads.showOlderReleases	See {count} older releases
downloads.hideOlderReleases	Hide older releases
downloads.opensourceTrust	Every release is open source. Build from source, or download directly from GitHub.
downloads.downloadFromGithub	Download from GitHub
animations.subtitle	Browse and preview all available open.mp animations.

Unrelated fixes (pending from earlier):

• Fixed the animations page spamming browser history entries, which previously trapped users when navigating back
• Streamlined the animations page design to match the homepage and now the new download pages
• Cleanup on the code to remove dead code and unused css

[itsneufox]

forgor to show white mode