chore(i18n): pt-BR + en quotaShare.stackedBarTitle + usedSuffix (B/G4)

Add stackedBarTitle and usedSuffix keys to quotaShare namespace in both
pt-BR and en locales to support the new StackedAllocationBar component.

src/i18n/messages/en.json

@@ -7317,7 +7317,9 @@
     "migratedFromLocalStorageNotice": "Pools successfully migrated from localStorage.",
     "policyCapAbsoluteLabel": "Absolute cap",
     "policyCapAbsolutePlaceholder": "Numeric limit (optional)",
-    "multiDimensionLabel": "Multi-dimension"
+    "multiDimensionLabel": "Multi-dimension",
+    "stackedBarTitle": "Slices by API key",
+    "usedSuffix": "used {percent}%"
   },
   "quotaPlans": {
     "title": "Plans & Quotas",

src/i18n/messages/pt-BR.json

@@ -7307,7 +7307,9 @@
     "migratedFromLocalStorageNotice": "Pools migrados do localStorage com sucesso.",
     "policyCapAbsoluteLabel": "Cap absoluto",
     "policyCapAbsolutePlaceholder": "Limite numérico (opcional)",
-    "multiDimensionLabel": "Multi-dimensão"
+    "multiDimensionLabel": "Multi-dimensão",
+    "stackedBarTitle": "Fatias por API key",
+    "usedSuffix": "usou {percent}%"
   },
   "quotaPlans": {
     "title": "Planos & Cotas",