Restore ESLint and Prettier auto-formatting and CI linting (#1457)

* Restore ESLint and Prettier autoformatting

* Fix formatting and lints in web files

* Hacky fix to eslint crash

* Fix remaining lints

* Add lint-fix script

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Co-authored-by: 0hypercube <0hypercube@gmail.com>

frontend/src/utility-functions/platform.ts

@@ -61,10 +61,11 @@ export function isEventSupported(eventName: string) {
 	if (["submit", "reset"].includes(eventName)) tag = "form";
 	if (["error", "load", "abort"].includes(eventName)) tag = "img";
 	const element = document.createElement(tag);
-	
+
 	if (onEventName in element) return true;
 
 	// Check if "return;" gets converted into a function, meaning the event is supported
 	element.setAttribute(eventName, "return;");
+	// eslint-disable-next-line @typescript-eslint/no-explicit-any
 	return typeof (element as Record<string, any>)[onEventName] === "function";
 }