feat(i18n): first shoot on translated errors

src/i18n/messages/en/common.json

@@ -232,5 +232,18 @@
       "pages": "{current}/{total} pages",
       "totalPages": "{count} pages"
     }
+  },
+  "errors": {
+    "AUTH_INVALID_CREDENTIALS": "Invalid credentials",
+    "AUTH_PASSWORD_MISMATCH": "Passwords do not match",
+    "AUTH_EMAIL_EXISTS": "Email already exists",
+    "AUTH_PASSWORD_NOT_STRONG": "Password is not strong enough",
+    "AUTH_LOGOUT_ERROR": "Logout error",
+    "AUTH_INVALID_USER_DATA": "Invalid user data",
+    "AUTH_UNAUTHENTICATED": "Unauthenticated",
+
+    "SERIES_FETCH_ERROR": "Error fetching series",
+    "HOME_FETCH_ERROR": "Error fetching home",
+    "SERIES_NO_BOOKS_FOUND": "No books found in the series"
   }
 }