feat(category): save collapse state for signed in users (#2134)

packages/db/migrations/sqlite/0022_modern_sunfire.sql

@@ -0,0 +1,8 @@
+CREATE TABLE `section_collapse_state` (
+	`user_id` text NOT NULL,
+	`section_id` text NOT NULL,
+	`collapsed` integer DEFAULT false NOT NULL,
+	PRIMARY KEY(`user_id`, `section_id`),
+	FOREIGN KEY (`user_id`) REFERENCES `user`(`id`) ON UPDATE no action ON DELETE cascade,
+	FOREIGN KEY (`section_id`) REFERENCES `section`(`id`) ON UPDATE no action ON DELETE cascade
+);