6.0

in this commit:
- enhanced css (hover border, less annoying donate highlight, checkbox width fix for mobile, more consistent color scheme)
- addition of an urgent notice (in this case it mentions all issues related to old infra being fixed)
- updated twitter picker test
- changelog for 6.0
- removed partial translations

src/modules/pageRender/page.js

@@ -364,6 +364,7 @@ export default function(obj) {
             body: `<div id="desc-error" class="desc-padding subtext"></div>`
         })}
         <div id="popup-backdrop" style="visibility: hidden;" onclick="hideAllPopups()"></div>
+        <div id="urgent-notice" class="urgent-notice explanation center" onclick="popup('about', 1, 'changelog')" style="visibility: hidden;">${emoji("🎉", 18)} ${t("UrgentUpdate6")}</div>
         <div id="cobalt-main-box" class="center" style="visibility: hidden;">
             <div id="logo">${appName}</div>
             <div id="download-area">