feat(ui): tweak verbiage for model install errors

Author: psychedelicious

invokeai/frontend/web/public/locales/en.json

@@ -752,7 +752,7 @@
         "hfTokenUnableToVerify": "Unable to Verify HF Token",
         "hfTokenUnableToVerifyErrorMessage": "Unable to verify HuggingFace token. This is likely due to a network error. Please try again later.",
         "hfTokenSaved": "HF Token Saved",
-        "urlUnauthorizedErrorMessage": "You may need to provide an API key to access this model.",
+        "urlUnauthorizedErrorMessage": "You may need to configure an API token to access this model.",
         "urlUnauthorizedErrorMessage2": "Learn how here.",
         "imageEncoderModelId": "Image Encoder Model ID",
         "includesNModels": "Includes {{n}} models and their dependencies",