welcome_view: manage bigger jamiid font size

Font size could be changed from android settings.
GitLab: #1544

Change-Id: I5c2f5646336971c7033ff8807b88fc740173e79c

jami-android/app/src/main/res/layout/jami_id_layout.xml

@@ -40,7 +40,7 @@
             <androidx.constraintlayout.widget.ConstraintLayout
                 android:id="@+id/jami_id_text_view_wrapper"
                 android:layout_width="match_parent"
-                android:layout_height="match_parent"
+                android:layout_height="wrap_content"
                 android:orientation="horizontal">
 
                 <!-- Jami ID text -->