updated mock dream dates with randomized range generator, adjusted imports for consistency, and relocated utilities for better structure

Signed-off-by: Matthias Puchstein <matthias@puchstein.bayern>

src/utils/DreamUtils.ts

@@ -0,0 +1,10 @@
+import Dream from '../types/Dream.ts';
+
+/**
+ * Sorts dreams by date in descending order (newest first)
+ * @param dreams - Array of dreams to sort
+ * @returns Sorted array of dreams
+ */
+export const getSortedDreamsByDate = (dreams: Dream[]): Dream[] => {
+    return [...dreams].sort((a, b) => b.date.getTime() - a.date.getTime());
+};