ColorSchemes: Adds more color schemes and text colors that depend on the background (#28305)

* Adding more color modes and text colors that depend on the background color

* Updates

* Updated

* Another big value fix

* Fixing unit tests

* Updated

* Updated test

* Update

* Updated

* Updated

* Updated

* Updated

* Added new demo dashboard

* Updated

* updated

* Updated

* Updateed

* added beta notice

* Fixed e2e test

e2e/suite1/specs/templating-dashboard-links-and-variables.ts

@@ -29,7 +29,7 @@ e2e.scenario({
       e2e.components.DashboardLinks.link()
         .should('be.visible')
         .and(links => {
-          expect(links).to.have.length(13);
+          expect(links).to.have.length.greaterThan(13);
 
           for (let index = 0; index < links.length; index++) {
             expect(Cypress.$(links[index]).attr('href')).contains(`var-custom=${variableValue}`);