v0.22.0 — Inventory search + Location/Label grouping; Suggestions styling fix

Adds a search box (matches name, location, and labels) and a Location/Label
grouping toggle to Inventory, and fixes the unstyled Suggestions page.
(Renumbered from 0.19.0 → 0.22.0: Pantry work took 0.19–0.21 in parallel.)

Hardening from a max-effort code review of the new grid:
- Contained items resolve to their container's effective location, so search
  finds them and the flat view groups them under the right place (not "No
  location").
- Location/label groups key on id, not name, so same-named places/labels stay
  separate; synthetic bucket renamed "No labels" to avoid colliding with a real
  label; fixed duplicate React keys and two empty-state regressions.
- deleteItem now reparents a deleted container's contents into its own spot
  (its place or parent item) instead of orphaning them; the grid also treats
  any still-orphaned child as top-level so nothing silently vanishes.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/lib/changelog.ts

@@ -8,6 +8,16 @@ export type ChangelogEntry = {
 };
 
 export const CHANGELOG: ChangelogEntry[] = [
+  {
+    version: "0.22.0",
+    date: "2026-07-04",
+    changes: [
+      "Inventory can now be searched and regrouped — there's a search box (matches item names, locations, and labels) and a Location / Label toggle to group your stuff either way.",
+      "Fixed the Suggestions page — the boxes and the \"Send suggestion\" button were rendering unstyled (dark, unreadable inputs and an invisible button). They now look right and are readable.",
+      "Searching now finds things stored inside containers too — search \"garage\" and you'll see the drill inside the garage toolbox, not just the toolbox.",
+      "Deleting a container (like a toolbox) now leaves its contents in its spot — a wrench in a deleted garage toolbox becomes a wrench loose in the garage, instead of disappearing.",
+    ],
+  },
   {
     version: "0.21.1",
     date: "2026-06-29",