quickstarts: Consume v6 alphas and build Penta demo

[nicolethoen]

Once the following components have been built out using new design tokens, the core + react v6 alphas can be pulled into quickstarts to build out a penta demo:

• [x] Accordion (https://github.com/patternfly/patternfly/issues/5729)
• [x] CodeBlock (https://github.com/patternfly/patternfly/issues/5735)
• [x] Gallery
• [x] Icon (https://github.com/patternfly/patternfly/issues/5724)
• [x] Label (https://github.com/patternfly/patternfly/issues/5716)
• [x] List (https://github.com/patternfly/patternfly/issues/5730)
• [x] Switch (https://github.com/patternfly/patternfly/issues/5738)
• [x] ToggleGroup (https://github.com/patternfly/patternfly/issues/5717)
• [x] Wizard (https://github.com/patternfly/patternfly/issues/5742)
• [x] Alert (https://github.com/patternfly/patternfly/issues/5715)
• [x] Badge (https://github.com/patternfly/patternfly/issues/5716)
• [x] Banner (https://github.com/patternfly/patternfly/issues/5743)
• [x] Brand (https://github.com/patternfly/patternfly/issues/5724)
• [x] Button (https://github.com/patternfly/patternfly/issues/5717)
• [x] Divider (https://github.com/patternfly/patternfly/issues/5724)
• [x] Drawer (https://github.com/patternfly/patternfly/issues/5711)
• [x] EmptyState (https://github.com/patternfly/patternfly/issues/5733)
• [x] ExpandableSection (https://github.com/patternfly/patternfly/issues/5729)
• [x] Flex
• [x] Form (https://github.com/patternfly/patternfly/issues/5706)
• [x] MenuToggle (https://github.com/patternfly/patternfly/issues/5718)
• [x] Modal (https://github.com/patternfly/patternfly/issues/5707)
• [x] Nav (https://github.com/patternfly/patternfly/issues/5712)
• [x] Popover (https://github.com/patternfly/patternfly/issues/5732)
• [x] Radio (https://github.com/patternfly/patternfly/issues/5706)
• [x] SearchInput (https://github.com/patternfly/patternfly/issues/5706)
• [x] Select (https://github.com/patternfly/patternfly/issues/5718)
• [x] Split
• [x] Stack
• [x] Text (https://github.com/patternfly/patternfly/issues/5730)
• [x] TextInput (https://github.com/patternfly/patternfly/issues/5706)
• [x] Title (https://github.com/patternfly/patternfly/issues/5730)
• [x] Toolbar (https://github.com/patternfly/patternfly/issues/5713)
• [x] Tooltip (https://github.com/patternfly/patternfly/issues/5732)

The demo will be especially powerful once the v6 Classic theme is done, so that the following deprecated components can exist alongside themed/non-deprecated components without any style clashing:

• [ ] PageHeader-deprecated
• [ ] PageHeaderTools-deprecated (PageHeaderTools-deprecated, PageHeaderToolsItem-deprecated)

Once the official alpha is released quickstart's v6 branch should consume them.

The v6 branch should also be updated to include all changes made to the main branch since the v6 branch was created.

Once the code merges and a v6-alpha of this extension is available, it should be pulled into the v6 branch on org.

After feedback is provided about how the deprecated PageHeader behaved after the v6 migration was completed, a follow up issue should be opened and completed to remove the usage of the deprecated page header.

[andrew-ronaldson]

Here is a link to the Figma updates

[nicolethoen]

closed by #297