Feat: hide blocks not challenges (#39504)

* fix: remove isHidden flag from frontmatter

* fix: add isUpcomingChange

Co-authored-by: Ahmad Abdolsaheb <ahmad.abdolsaheb@gmail.com>

* feat: hide blocks not challenges

Co-authored-by: Ahmad Abdolsaheb <ahmad.abdolsaheb@gmail.com>

Co-authored-by: Ahmad Abdolsaheb <ahmad.abdolsaheb@gmail.com>

client/src/components/Map/components/SuperBlock.js

@@ -60,8 +60,6 @@ export class SuperBlock extends Component {
     const blocksForSuperBlock = nodes.filter(
       node => node.superBlock === superBlock
     );
-    // since the nodes have been filtered based on isHidden, any blocks whose
-    // nodes have been entirely removed will not appear in this array.
     const blockDashedNames = uniq(
       blocksForSuperBlock.map(({ block }) => block)
     );

client/src/components/Map/index.js

@@ -111,7 +111,7 @@ export class Map extends Component {
 
   render() {
     const { nodes } = this.props;
-    // if a given superBlock's nodes have been filtered (via isHidden, say) that
+    // if a given superBlock's nodes have been filtered that
     // superBlock will not appear in superBlocks and will not be rendered.
     const superBlocks = uniq(nodes.map(({ superBlock }) => superBlock));
     return (

client/src/components/landing/index.js

@@ -19,7 +19,6 @@ export const Landing = ({ page = 'landing' }) => {
   const data = useStaticQuery(graphql`
     query certifications {
       challenges: allChallengeNode(
-        filter: { isHidden: { eq: false } }
         sort: { fields: [superOrder, order, challengeOrder] }
       ) {
         nodes {