Clean up example/demo class names still missing versioned prefix

[nicolethoen]

Components

packages/react-core//src/components/MenuToggle/examples/MenuToggle.css:#ws-react-c-menu-toggle-primary .pf-c-menu-toggle, #ws-react-c-menu-toggle-secondary .pf-c-menu-toggle {
packages/react-core//src/components/Alert/examples/alert.css:.ws-react-c-alert .pf-c-alert {
packages/react-core//src/components/Checkbox/examples/checkbox.css:.ws-react-c-checkbox .pf-c-check.nested {
packages/react-core//src/demos/JumpLinks.md:    const masthead = document.getElementsByClassName('pf-c-masthead')[0];
packages/react-core//src/demos/examples/JumpLinks/JumpLinksWithDrawer.js:    const masthead = document.getElementsByClassName('pf-c-masthead')[0];

Layouts

packages/react-core//src/layouts/Split/examples/split.css:.ws-react-l-split .pf-l-split,
packages/react-core//src/layouts/Split/examples/split.css:.ws-react-l-split .pf-l-split > .pf-l-split__item {
packages/react-core//src/layouts/Gallery/examples/gallery.css:.ws-react-l-gallery .pf-l-gallery {
packages/react-core//src/layouts/Gallery/examples/gallery.css:.ws-react-l-gallery .pf-l-gallery > div {
packages/react-core//src/layouts/Bullseye/examples/bullseye.css:.ws-react-l-bullseye .pf-l-bullseye,
packages/react-core//src/layouts/Bullseye/examples/bullseye.css:.ws-react-l-bullseye .pf-l-bullseye > div {
packages/react-core//src/layouts/Level/examples/level.css:.ws-react-l-level .pf-l-level {
packages/react-core//src/layouts/Level/examples/level.css:.ws-react-l-level .pf-l-level,
packages/react-core//src/layouts/Level/examples/level.css:.ws-react-l-level .pf-l-level > div {
packages/react-core//src/layouts/Stack/examples/stack.css:.ws-react-l-stack > .pf-l-stack {
packages/react-core//src/layouts/Stack/examples/stack.css:.ws-react-l-stack .pf-l-stack,
packages/react-core//src/layouts/Stack/examples/stack.css:.ws-react-l-stack .pf-l-stack > .pf-l-stack__item {
packages/react-core//src/layouts/Flex/__tests__/Flex.test.tsx:            .className.replace('pf-l-flex', '')
packages/react-core//src/layouts/Flex/examples/flex.css:.ws-react-l-flex .pf-l-flex {
packages/react-core//src/layouts/Flex/examples/flex.css:.ws-react-l-flex .pf-l-flex > div,
packages/react-core//src/layouts/Grid/examples/grid.css:.ws-react-l-grid > .pf-l-grid,
packages/react-core//src/layouts/Grid/examples/grid.css:.ws-react-l-grid > .pf-l-grid > .pf-l-grid__item {
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">100C</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">50C</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">0C</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">3.6Ghz</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">1.5Ghz</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">0GHZ</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">100C</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">50C</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">0C</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">3.6Ghz</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">1.5Ghz</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">0GHZ</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">100C</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">50C</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">0C</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">3.6Ghz</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">1.5Ghz</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">0GHZ</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">100C</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">50C</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">0C</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">3.6Ghz</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">1.5Ghz</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">0GHZ</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">100C</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">50C</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">0C</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">3.6Ghz</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">1.5Ghz</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">0GHZ</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">100C</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">50C</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">0C</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">3.6Ghz</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">1.5Ghz</div>
packages/react-core//src/demos/CardDemos.md:                          <div className="pf-l-flex__item">0GHZ</div>