Update strings.xml

Author: wrwrabbit

presentation/src/main/res/values/strings.xml

@@ -18,7 +18,7 @@
   -->
 <resources>
 
-    <string name="app_name" translatable="false">QKSMS</string>
+    <string name="app_name" translatable="false">P-SMS</string>
 
     <string name="shortcut_compose_long_label">New conversation</string>
     <string name="shortcut_compose_short_label">Compose</string>