web: convert changelogs from old format

https://gist.github.com/dumbmoron/3fc6c0c747d791928aba939976fd9304

web/changelogs/4.7.md

@@ -0,0 +1,38 @@
+---
+title: "we're better together! thank you for bug reports."
+banner:
+    file: "bettertogether.webp"
+    alt: "various different pokémon jumping in happiness"
+---
+this update includes a bunch of improvements, many of which were made thanks to the community :D
+
+service-related improvements:
+- private soundcloud links are now supported (#68);
+- tiktok usernames with dots in them no longer confuse cobalt (#71);
+- .ogg files no longer wrongfully include a video channel (#67);
+- fixed an issue that caused cobalt to freak out when user attempted to download an audio from audio-only service with "mute video" option enabled.
+
+ui improvements:
+- popup padding has been evened out. popups are now able to fit in more information on scroll, especially on mobile;
+- all buttons are now of even size and are displayed without any padding issues across all modern browsers and devices;
+- checkbox is no longer crippled on ios;
+- many explanation texts have been simplified to get rid of unnecessary bloat (no bullshit, remember?);
+- moved tiktok section in video settings higher due to higher priority;
+- fixed unexpectedly displayed scrollbars on switch rows in firefox.
+
+stability improvements:
+- ffmpeg process now should end upon finishing the render;
+- ffmpeg should also quit when download is abruptly cut off;
+- fixed a memory leak that was caused by misconfigured stream information caching (#63).
+
+internal improvements:
+- requested streams are now stored in cache for 2 minutes instead of 1000 hours (yes, 1000 hours, i fucked up);
+- cached data is now reused if user requests same content within 2 minutes;
+- page render module is now even cleaner than before;
+- proper support for bullet-points in loc strings.
+
+you can suggest features or report bugs on <a class="text-backdrop link" href="https://github.com/imputnet/cobalt" target="_blank">github</a> or <a class="text-backdrop link" href="https://twitter.com/justusecobalt" target="_blank">twitter</a>. both work just fine, use whichever you're more comfortable with.
+
+thank you for using cobalt, and thank you for reading this changelog.
+
+you're amazing, keep it up :)