Contact list drawer: translation corrected and header font style changed.

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

@@ -11,5 +11,7 @@
         android:paddingLeft="16dp"
         android:paddingRight="16dp"
         android:text="@string/xmpp_accounts"
-        android:textSize="16sp" />
+        android:textAppearance="?android:attr/textAppearanceMedium"
+        android:textSize="16sp"
+        android:textStyle="bold" />
 </LinearLayout>

app/src/main/res/values-ru/contact_list.xml

@@ -115,5 +115,5 @@
 
     <string name="sender_is_you">Вы</string>
 
-    <string name="xmpp_accounts">XMPP accounts</string>
+    <string name="xmpp_accounts">Учётные записи XMPP</string>
 </resources>
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