Add german and spanish translations for sheet title (#123)

add german and spanish translations for sheet title

Author: kiftio

samples/MobileBuyIntegration/app/src/main/res/values-de/strings.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="checkout_web_view_title">Jetzt kaufen!</string>
+</resources>

samples/MobileBuyIntegration/app/src/main/res/values-es/strings.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="checkout_web_view_title">¡Comprar ahora!</string>
+</resources>

samples/MobileBuyIntegration/app/src/main/res/values/strings.xml

@@ -1,9 +1,9 @@
 <resources>
-    <string name="app_name">Checkout SDK Mobile Buy Integration Sample</string>
-    <string name="color_scheme_light">Light</string>
-    <string name="color_scheme_dark">Dark</string>
-    <string name="color_scheme_web">Web</string>
-    <string name="color_scheme_automatic">Automatic</string>
-    <string name="checkout_error">Checkout failed, please try again</string>
+    <string name="app_name" translatable="false">Checkout SDK Mobile Buy Integration Sample</string>
+    <string name="color_scheme_light" translatable="false">Light</string>
+    <string name="color_scheme_dark" translatable="false">Dark</string>
+    <string name="color_scheme_web" translatable="false">Web</string>
+    <string name="color_scheme_automatic" translatable="false">Automatic</string>
+    <string name="checkout_error" translatable="false">Checkout failed, please try again</string>
     <string name="checkout_web_view_title">Buy Now!</string>
 </resources>