updated rpc-request proto schema hint

ui-ngx/src/assets/locale/locale.constant-en_US.json

@@ -1123,7 +1123,7 @@
         "rpc-response-topic-filter-required": "RPC response topic filter is required.",
         "rpc-request-proto-schema": "RPC request proto schema",
         "rpc-request-proto-schema-required": "RPC request proto schema is required.",
-        "rpc-request-proto-schema-hint": "RPC request message should have always fields: string method = 1; int32 requestId = 2; and params = 3 of any data type.",
+        "rpc-request-proto-schema-hint": "RPC request message should always have fields: string method = 1; int32 requestId = 2; and params = 3 of any data type.",
         "not-valid-pattern-topic-filter": "Not valid pattern topic filter",
         "not-valid-single-character": "Invalid use of a single-level wildcard character",
         "not-valid-multi-character": "Invalid use of a multi-level wildcard character",