Small layout improvement

app/src/main/java/eu/faircode/email/FragmentAbout.java

@@ -63,7 +63,6 @@ public class FragmentAbout extends FragmentBase {
 
     @Override
     public void onPrepareOptionsMenu(Menu menu) {
-        PackageManager pm = getContext().getPackageManager();
         menu.findItem(R.id.menu_changelog).setVisible(!TextUtils.isEmpty(BuildConfig.CHANGELOG));
         super.onPrepareOptionsMenu(menu);
     }

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

@@ -21,10 +21,10 @@
 
             <TextView
                 android:id="@+id/tvMarkdown"
-                android:layout_width="wrap_content"
+                android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:text="Markdown"
-                android:textAppearance="@style/TextAppearance.AppCompat.Small"
+                android:textAppearance="@style/TextAppearance.AppCompat.Medium"
                 app:layout_constraintStart_toStartOf="parent"
                 app:layout_constraintTop_toTopOf="parent" />
         </androidx.constraintlayout.widget.ConstraintLayout>