add changes after installing zsh

app/src/main/java/com/noahvogt/miniprojekt/MainActivity.java

@@ -70,11 +70,7 @@ public class MainActivity extends AppCompatActivity {
         CustomAdapter adapter = new CustomAdapter(data);
         // Attach the adapter to the recyclerview to populate items
         recyclerView.setAdapter(adapter);
-        // First param is number of columns and second param is orientation i.e Vertical or Horizontal
-        StaggeredGridLayoutManager gridLayoutManager =
-                new StaggeredGridLayoutManager(3, StaggeredGridLayoutManager.VERTICAL);
-        // Attach the layout manager to the recycler view
-        recyclerView.setLayoutManager(gridLayoutManager);
+        recyclerView.setLayoutManager(new LinearLayoutManager(this));
     }
 
     //@Override

app/src/main/java/com/noahvogt/miniprojekt/ui/home/Data.java

@@ -9,6 +9,7 @@ public class Data {
     public Data(String name, boolean online) {
         mName = name;
         mOnline = online;
+
     }
 
     public String getName() {

app/src/main/res/layout/activity_main.xml

@@ -6,7 +6,17 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:fitsSystemWindows="true"
-    tools:openDrawer="start">
+    tools:openDrawer="start"
+    tools:context=".MainActivity">
+
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/recyclerView"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        app:layoutManager="androidx.recyclerview.widget.GridLayoutManager">
+
+    </androidx.recyclerview.widget.RecyclerView>
 
     <include
         layout="@layout/app_bar_main"
@@ -38,12 +48,4 @@
 
 
 
-        <androidx.recyclerview.widget.RecyclerView
-            android:id="@+id/recyclerView"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            app:layoutManager="androidx.recyclerview.widget.GridLayoutManager">
-
-        </androidx.recyclerview.widget.RecyclerView>
-
 </androidx.drawerlayout.widget.DrawerLayout>

app/src/main/res/layout/fragment_home.xml

@@ -26,6 +26,7 @@
         /-->
 
     <TextView
+        android:id="@+id/Betreff"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_row="1"
@@ -40,10 +41,10 @@
         android:layout_height="wrap_content"
         android:layout_row="2"
         android:layout_column="0"
-        android:gravity="left"
         android:textSize="20sp" />
 
     <TextView
+        android:id="@+id/date"
         android:textSize="20dp"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"