(TP-110) feat: add favourites table to migrations

Author: Kattsyn

rentplace/src/main/resources/db/migration/V202505090054__favourites_init.sql

@@ -0,0 +1,8 @@
+create table favourites
+(
+    user_id     BIGINT NOT NULL,
+    property_id BIGINT NOT NULL,
+    PRIMARY KEY (user_id, property_id),
+    FOREIGN KEY (user_id) references users (user_id) ON DELETE CASCADE,
+    FOREIGN KEY (property_id) references properties (property_id) ON DELETE CASCADE
+)