PF cleanup: standardize on import statements

[nicolethoen]

There are a few places where PF components are being imported from different locations.

Most places, i've noticed components are imported from @patternfly/react-core/dist/dynamic...
Some places, components are import using a different pattern, like @patternfly/react-core like here.

Unless there's an architectural reason to do otherwise, I think it's likely easiest to import all PF components from @patternfly/react-core and let the build config determine resolve the import the way it's set up to.

If you need to use a deprecated component - you'd import them from @patternfly/react-core/deprecated
But PF does provide a non-deprecated solution for every deprecated component - feel free to reach out if those solutions are not working for findable for any reason.