While performing aem 6.3 to 6.5 in-place upgrade activity, I have run Pattern Detector. As most of the things have been greyed out under /libs and can't be overlayed/inherited. I have found the below-mentioned issue. Can anyone help me with this?
What do you need help with specifically? As you mentioned, you currently are overriding nodes that should not be overridden. The CAV page describes the final area:
* Defines a node as final, so that it cannot be overlaid
* or inherited by sling:resourceSuperType.
So the Pattern Detector is warning you that you are violating this mixin on the node at /apps/xxx/granite/ui/components/coral/foundation/form/textfield by overriding /libs/granite/ui/components/coral/foundation/form/textfield. I assume you've done this to create a customized TextField widget?