style: fix linting issues met ESLint

backend/src/interfaces/learning-content.ts

@@ -26,7 +26,7 @@ export interface LearningObjectNode {
     transitions: Transition[];
     created_at: string;
     updatedAt: string;
-    done?: boolean; // true if a submission exists for this node by the user for whom the learning path is customized.
+    done?: boolean; // True if a submission exists for this node by the user for whom the learning path is customized.
 }
 
 export interface LearningPath {

backend/src/services/learning-paths/database-learning-path-provider.ts

@@ -99,7 +99,7 @@ async function convertNodes(nodesToLearningObjects: Map<LearningPathNode, Filter
                 version: learningObject.version,
                 transitions: node.transitions
                     .filter(trans => !personalizedFor || isTransitionPossible(trans, lastSubmission)) // If we want a personalized learning path, remove all transitions that aren't possible.
-                    .map((trans, i) => convertTransition(trans, i, nodesToLearningObjects)), // then convert all the transition
+                    .map((trans, i) => convertTransition(trans, i, nodesToLearningObjects)), // Then convert all the transition
             };
         })
         .toArray();

backend/src/services/learning-paths/learning-path-personalization-util.ts

@@ -20,9 +20,9 @@ export async function getLastSubmissionForCustomizationTarget(node: LearningPath
     };
     if (pathFor.type === 'group') {
         return await submissionRepo.findMostRecentSubmissionForGroup(learningObjectId, pathFor.group);
-    } else {
-        return await submissionRepo.findMostRecentSubmissionForStudent(learningObjectId, pathFor.student);
     } 
+        return await submissionRepo.findMostRecentSubmissionForStudent(learningObjectId, pathFor.student);
+    
 }
 
 

backend/src/services/learning-paths/learning-path-service.ts

@@ -26,7 +26,7 @@ const learningPathService = {
         const userContentLearningPaths = await databaseLearningPathProvider.fetchLearningPaths(userContentHruids, language, source, personalizedFor);
         const nonUserContentLearningPaths = await dwengoApiLearningPathProvider.fetchLearningPaths(nonUserContentHruids, language, source, personalizedFor);
 
-        let result = (userContentLearningPaths.data || []).concat(nonUserContentLearningPaths.data || []);
+        const result = (userContentLearningPaths.data || []).concat(nonUserContentLearningPaths.data || []);
 
         return {
             data: result,