Upgrade PF and get rid of custom CSS on settings page

[DaoDaoNoCode]

Description

Closes #950
Because PF changed the onChange prop order for SearchInput to match the DOM event (event as the first parameter and value as the second), we also need to make some small updates to match that change.
Also, update the user management page and cluster settings page, get rid of the Form component, and use the plain bordered Card component instead to get rid of the custom CSS styles.

How Has This Been Tested?

The visual styles are slightly changed on the settings page, so go to the settings page to manually see if anything looks weird. The functionalities keep the same.

Merge criteria:

• The commits are squashed in a cohesive manner and have meaningful messages.
• Testing instructions have been added in the PR body (for PRs involving changes that are not immediately obvious).
• The developer has manually tested the changes and verified that the changes work

[andrewballantyne]

Holding to prevent merging in this release -- this is for next release.

[DaoDaoNoCode]

Verified #977 is fixed by bumping the PF version.

[andrewballantyne]

Daaaang, those settings pages look sooooo much better. Love the head boldness, the clean borders and spacing.

[lucferbux]

Not related to the PR itself but found testing it, inside BYONImageTable.tsx, you can add entries with the same name, and this code:

            return (
              <Tbody key={image.name} isExpanded={isBYONImageExpanded(image)}>
                <Tr isHidden={applyTableFilter(image)}>
                  <Td

Will trigger the Warning: Encountered two children with the same key, "test" error.

[openshift-ci]

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