feat: merge people search into the recipe search bar on Explore

People search existed but was buried in its own tab with no entry
point from anywhere else — easy to conclude it "doesn't work" since
nobody would find it. Now one query on Explore hits both
/api/v1/search and /api/v1/users/search and renders People/Recipes
sections together; the standalone people tab and its now-dead
PeopleSearch component are gone.

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

apps/web/messages/fr.json

@@ -438,11 +438,7 @@
     "dismissAiScaling": "Ignorer l'ajustement IA"
   },
   "people": {
-    "title": "Trouver des personnes",
-    "subtitle": "Recherchez des cuisiniers à suivre par nom ou nom d'utilisateur.",
-    "searchPlaceholder": "Rechercher par nom ou nom d'utilisateur…",
-    "searching": "Recherche…",
-    "noneFound": "Personne trouvé."
+    "searching": "Recherche…"
   },
   "messages": {
     "loading": "Chargement…",
@@ -497,15 +493,15 @@
   },
   "explore": {
     "title": "Explorer",
-    "tabRecipes": "Recettes",
-    "tabPeople": "Personnes",
-    "searchPlaceholder": "Rechercher des recettes publiques…",
+    "searchPlaceholder": "Rechercher des recettes et des personnes…",
+    "peopleHeading": "Personnes",
+    "recipesHeading": "Recettes",
     "maxMinutes": "Minutes max",
     "aiSearchPlaceholder": "ex. dîners rapides en semaine, cuisine réconfortante italienne…",
     "anyDifficulty": "Toute difficulté",
     "resultsFoundSingular": "{count} recette trouvée",
     "resultsFoundPlural": "{count} recettes trouvées",
-    "noResultsTitle": "Aucune recette trouvée pour « {query} »",
+    "noResultsTitle": "Aucun résultat pour « {query} »",
     "noResultsHint": "Essayez d'autres mots-clés ou retirez des filtres",
     "loadMore": "Charger plus",
     "recipeIdeas": "Idées de recettes",