5.6: tiny quality of life improvements

- remember celebratory emoji changes? they've been fixed, and are now dynamically loaded!
- changelog history now lets you try to load it again if first attempt failed for whatever reason.
- added glow to the donation button to make it more visible.
- cleaned up frontend js a little bit.
- updated some links in tests.

src/localization/languages/en.json

@@ -94,7 +94,7 @@
         "ChangelogPressToHide": "collapse",
         "Donate": "donate",
         "DonateSub": "help me keep it up",
-        "DonateExplanation": "{appName} does not (and will never) serve ads or sell your data, therefore it's <span class=\"text-backdrop\">completely free to use</span>. but turns out developing and keeping up a web service used by over 80 thousand people is not that easy.\n\nif you ever found {appName} useful and want to keep it online, or simply want to thank the developer, consider chipping in! every cent helps and is VERY appreciated :D",
+        "DonateExplanation": "{appName} does not (and will never) serve ads or sell your data, therefore it's <span class=\"text-backdrop\">completely free to use</span>. but turns out developing and keeping up a web service used by over 150,000 people is not that easy.\n\nif you ever found {appName} useful and want to help continue its development and support, or simply want to thank the developer, consider chipping in! every cent helps and is VERY appreciated :D\n\ncurrently, i have big (scaling) plans, and i need your help. {appName}'s usage is growing daily, so i need to make up for it. <span class=\"text-backdrop\">donations are more appreciated than ever.</span>\n\ni am yet to earn anything from {appName}, everything goes back to users, so you're essentially helping everyone.",
         "DonateVia": "donate via",
         "DonateHireMe": "...or you can <a class=\"text-backdrop italic\" href=\"{s}\" target=\"_blank\">hire me</a> :)",
         "SettingsVideoMute": "mute audio",