fix: batch of collections/i18n/translate-button fixes (v0.53.1)

- Drag-reorder used verticalListSortingStrategy on a multi-column grid,
  which computes wrong transforms for grid reflow — swapped to
  rectSortingStrategy so cards actually animate live while dragging.
- Grip handle was rendered as a sibling of (not a descendant of) the
  `group` element its `group-hover:opacity-100` depended on, so it was
  permanently invisible. Fixed the DOM nesting and made it always
  partially visible instead of hover-only.
- common.edit was missing from both locales (not just French) —
  edit-collection-dialog.tsx was the first caller to hit it.
- Root cause of "generated in my language but Translate still shows":
  generate-meal, meal-plan/generate, and adapt never set recipes.language
  on the row they inserted, so the button's `!recipe.language || ...`
  check always fell back to "show it". Fixed at all three insert sites.
- Translate dialog was entirely hardcoded English (title, description,
  language names, buttons) despite i18n keys already existing for most of
  it — now uses them, plus new translated language-name keys.
- Recipe tags now render on the recipe detail page (previously grid-card
  only).
- Collection header actions converted to icon-only + tooltip, matching
  the recipe page's pattern instead of icon+label buttons.
- Collections list search now also matches recipe titles inside each
  collection, not just the collection's own name/description.
- Explore page links to /collections/explore next to its tabs.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

apps/web/app/(app)/collections/page.tsx

@@ -19,7 +19,18 @@ export default async function CollectionsPage({
   const query = q?.trim();
 
   const where = query
-    ? and(eq(collections.userId, session.user.id), or(ilike(collections.name, `%${query}%`), ilike(collections.description, `%${query}%`)))
+    ? and(
+        eq(collections.userId, session.user.id),
+        or(
+          ilike(collections.name, `%${query}%`),
+          ilike(collections.description, `%${query}%`),
+          sql`exists (
+            select 1 from collection_recipes cr
+            inner join recipes r on r.id = cr.recipe_id
+            where cr.collection_id = ${collections.id} and r.title ilike ${`%${query}%`}
+          )`
+        )
+      )
     : eq(collections.userId, session.user.id);
 
   const [userCollections, countRows] = await Promise.all([