Introduced training session

javascript/homeworkPage.js

@@ -85,9 +85,7 @@ class HomeworkPage extends HomeworkElement {
       const response = await fetch(dataFile)
       const data = await response.json()
       data.items.forEach((item) => {
-        const row = new HomeworkVocabularyTask(crypto.randomUUID())
-        row.setSourceText(item.source)
-        row.setTargetText(item.target)
+        const row = new HomeworkVocabularyTask(crypto.randomUUID(), item.source, item.target)
         this.content.append(row)
       })
       console.log(data.items)
@@ -106,6 +104,10 @@ class HomeworkPage extends HomeworkElement {
 
     trainVocabulary() {
       console.log("Train!!")
+      const tasks = this.content.querySelectorAll("homework-vocabulary-task")
+      tasks.forEach((task) => {
+        task.state = "train"
+      })
     }
 
     clearAllVocabularies() {
@@ -127,7 +129,6 @@ class HomeworkPage extends HomeworkElement {
           }
         })
       }
-
     }
 }
 customElements.define('homework-page', HomeworkPage)