feat(i18n): complete message parity across all 25 locales

The admin.studio.nitroCleanup section (102 keys) only existed in en and
nl, so 23 locales fell back to English for the entire Nitro Cleanup
panel. The referrals and dailyRewards keys were missing from the same
23 locales, and en itself was missing 6 keys that nl had.

Add the missing keys to every locale with translations, so all 25
locales now carry the same 6063 keys.

src/messages/en.json

@@ -57,6 +57,10 @@
 		}
 	},
 	"pages": {
+		"title": "Linked accounts",
+		"subtitle": "Link a social account so you can log in with one click",
+		"connected": "Linked",
+		"unavailable": "Unavailable",
 		"error": {
 			"code": "Error",
 			"title": "Something went wrong",
@@ -1026,6 +1030,7 @@
 			"confirmPasswordPlaceholder": "Repeat password",
 			"selectOutfit": "Select your outfit",
 			"termsAccept": "I am 18+ and accept the {hotel} terms & rules.",
+			"ageVerified": "I am 18+ and agree to the age requirement.",
 			"accepted": "Accepted & agreed",
 			"showPassword": "Show",
 			"hidePassword": "Hide",
@@ -1596,6 +1601,7 @@
 			},
 			"ads": {
 				"title": "Advertisements",
+				"colId": "ID",
 				"subtitle": "Manage hotel advertisements and promotional banners",
 				"newAd": "+ New ad",
 				"edit": "Edit",