feat(app): redesign discovery and align skeletons with rendered UI

fluxer_app/src/features/ui/RelativePosition.ts

@@ -0,0 +1,8 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
+export const RelativePosition = Object.freeze({
+	BEFORE: 'before',
+	AFTER: 'after',
+} as const);
+
+export type RelativePosition = (typeof RelativePosition)[keyof typeof RelativePosition];