Fix code smells

LaDOSE.Src/LaDOSE.WebApp/src/lib/games/draft.ts

@@ -63,3 +63,23 @@ export function toDto(draft: Draft): GameDTO {
 export function nextOrder(games: GameDTO[]): number {
 	return games.reduce((max, game) => Math.max(max, game.order ?? 0), 0) + 1;
 }
+
+/**
+ * Whether the editor holds unsaved changes.
+ *
+ * Field by field rather than by comparing `JSON.stringify` output, which is
+ * key-order dependent: it would report a clean draft as dirty the moment
+ * `blankDraft` and `toDraft` listed their keys in a different order.
+ */
+export function isDirty(a: Draft, b: Draft): boolean {
+	return (
+		a.id !== b.id ||
+		a.name !== b.name ||
+		a.longName !== b.longName ||
+		a.order !== b.order ||
+		a.imgUrl !== b.imgUrl ||
+		a.wordPressTag !== b.wordPressTag ||
+		a.wordPressTagOs !== b.wordPressTagOs ||
+		a.smashId !== b.smashId
+	);
+}