Update owncloudApp/src/main/res/values/strings.xml

Co-authored-by: Juan Carlos Garrote <juanca_arrabal@hotmail.com>

Author: EParzefall

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

@@ -129,7 +129,7 @@
 
     <string name="error_reason">because</string>
     <string name="auth_failure_snackbar">Authentication failed</string>
-    <string name="server_not_supported">Your server version is lower than 10 so is not supported, please upgrade your server to a newer version.</string>
+    <string name="server_not_supported">Your server version is lower than 10 so it is not supported, please upgrade your server to a newer version.</string>
     <string name="auth_failure_snackbar_action">Change account</string>
     <string name="auth_oauth_failure">The access token has expired or become invalid. Sign in again to regain access.</string>
     <string name="auth_oauth_failure_snackbar_action">Sign in</string>