Replace the Vue frontend with Svelte

frontend/src/utility-functions/debounce.ts

@@ -0,0 +1,31 @@
+export type Debouncer = ReturnType<typeof debouncer>;
+
+export type DebouncerOptions = {
+	debounceTime: number;
+};
+
+// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
+export function debouncer<T>(callFn: (value: T) => unknown, { debounceTime = 60 }: Partial<DebouncerOptions> = {}) {
+	let currentValue: T | undefined;
+
+	const emitValue = (): void => {
+		if (currentValue === undefined) {
+			throw new Error("Tried to emit undefined value from debouncer. This should never be possible");
+		}
+		const emittingValue = currentValue;
+		currentValue = undefined;
+		callFn(emittingValue);
+	};
+
+	const updateValue = (newValue: T): void => {
+		if (currentValue !== undefined) {
+			currentValue = newValue;
+			return;
+		}
+
+		currentValue = newValue;
+		setTimeout(emitValue, debounceTime);
+	};
+
+	return { updateValue };
+}