fix(ui): add webp to supported image types in toast messages

Author: rikublock

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

@@ -1286,9 +1286,9 @@
         "somethingWentWrong": "Something Went Wrong",
         "uploadFailed": "Upload failed",
         "imagesWillBeAddedTo": "Uploaded images will be added to board {{boardName}}'s assets.",
-        "uploadFailedInvalidUploadDesc_withCount_one": "Must be maximum of 1 PNG or JPEG image.",
-        "uploadFailedInvalidUploadDesc_withCount_other": "Must be maximum of {{count}} PNG or JPEG images.",
-        "uploadFailedInvalidUploadDesc": "Must be PNG or JPEG images.",
+        "uploadFailedInvalidUploadDesc_withCount_one": "Must be maximum of 1 PNG, JPEG or WEBP image.",
+        "uploadFailedInvalidUploadDesc_withCount_other": "Must be maximum of {{count}} PNG, JPEG or WEBP images.",
+        "uploadFailedInvalidUploadDesc": "Must be PNG, JPEG or WEBP images.",
         "workflowLoaded": "Workflow Loaded",
         "problemRetrievingWorkflow": "Problem Retrieving Workflow",
         "workflowDeleted": "Workflow Deleted",