fix(client,i18n): Use block for front end / back end projects and back end challenge right breadcrumb (#41276)

client/src/templates/Challenges/projects/backend/Show.js

@@ -168,7 +168,8 @@ export class BackEnd extends Component {
           description,
           instructions,
           translationPending,
-          superBlock
+          superBlock,
+          block
         }
       },
       isChallengeCompleted,
@@ -198,7 +199,7 @@ export class BackEnd extends Component {
               <Col md={8} mdOffset={2} sm={10} smOffset={1} xs={12}>
                 <Spacer />
                 <ChallengeTitle
-                  block={blockName}
+                  block={block}
                   isCompleted={isChallengeCompleted}
                   superBlock={superBlock}
                   translationPending={translationPending}
@@ -260,6 +261,7 @@ export const query = graphql`
       challengeType
       helpCategory
       superBlock
+      block
       translationPending
       fields {
         blockName

client/src/templates/Challenges/projects/frontend/Show.js

@@ -127,6 +127,7 @@ export class Project extends Component {
           title,
           description,
           superBlock,
+          block,
           translationPending
         }
       },
@@ -155,7 +156,7 @@ export class Project extends Component {
               <Col md={8} mdOffset={2} sm={10} smOffset={1} xs={12}>
                 <Spacer />
                 <ChallengeTitle
-                  block={blockName}
+                  block={block}
                   isCompleted={isChallengeCompleted}
                   superBlock={superBlock}
                   translationPending={translationPending}
@@ -202,6 +203,7 @@ export const query = graphql`
       challengeType
       helpCategory
       superBlock
+      block
       translationPending
       fields {
         blockName