small ui improvements to main weblog list view

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

@@ -21,14 +21,17 @@
 
     <TextView
         android:id="@+id/authorText"
-        android:layout_width="wrap_content"
+        android:layout_width="0dp"
         android:layout_height="wrap_content"
+        android:layout_marginStart="32dp"
+        android:layout_marginLeft="32dp"
         android:layout_marginEnd="16dp"
         android:layout_marginRight="16dp"
+        android:gravity="right|center_vertical"
         android:text="Prof. Max Mustermann"
         android:textColor="@color/black"
-        app:layout_constraintBottom_toBottomOf="@+id/dateText"
         app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toEndOf="@+id/dateText"
         app:layout_constraintTop_toTopOf="@+id/dateText"
         tools:ignore="HardcodedText" />
 
@@ -36,21 +39,19 @@
         android:id="@+id/titleText"
         android:layout_width="0dp"
         android:layout_height="wrap_content"
-        android:layout_marginTop="8dp"
         android:text="Klausurergebnis Android Programmierung - New Android Version"
         android:textColor="@color/black"
         android:textSize="18sp"
         android:textStyle="bold"
         app:layout_constraintEnd_toEndOf="@+id/authorText"
         app:layout_constraintStart_toStartOf="@+id/dateText"
-        app:layout_constraintTop_toBottomOf="@+id/dateText"
+        app:layout_constraintTop_toBottomOf="@+id/authorText"
         tools:ignore="HardcodedText" />
 
     <TextView
         android:id="@+id/contentText"
         android:layout_width="0dp"
         android:layout_height="wrap_content"
-        android:layout_marginTop="8dp"
         android:layout_marginBottom="8dp"
         android:text="Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer risus nibh, viverra non dapibus vel, ullamcorper et nulla. Ut semper ullamcorper tellus eget pulvinar. Quisque nisl dolor, porttitor quis leo at, vehicula aliquet tellus. Nulla vulputate libero at tincidunt blandit. Ut et mi diam. Duis eu nibh dapibus, feugiat nibh nec, tempus ligula. Suspendisse mattis porta accumsan. "
         app:layout_constraintBottom_toBottomOf="parent"