Update accounts by default

app/src/main/java/eu/faircode/email/FragmentGmail.java

@@ -98,7 +98,7 @@ public class FragmentGmail extends FragmentBase {
         Bundle args = getArguments();
         personal = args.getString("personal");
         address = args.getString("address");
-        update = args.getBoolean("update");
+        update = args.getBoolean("update", true);
     }
 
     @Override

app/src/main/java/eu/faircode/email/FragmentOAuth.java

@@ -141,7 +141,7 @@ public class FragmentOAuth extends FragmentBase {
 
         personal = args.getString("personal");
         address = args.getString("address");
-        update = args.getBoolean("update");
+        update = args.getBoolean("update", true);
     }
 
     @Override

app/src/main/java/eu/faircode/email/FragmentQuickSetup.java

@@ -118,7 +118,7 @@ public class FragmentQuickSetup extends FragmentBase {
         super.onCreate(savedInstanceState);
 
         Bundle args = getArguments();
-        update = args.getBoolean("update");
+        update = args.getBoolean("update", true);
     }
 
     @Override

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

@@ -202,7 +202,7 @@
     <string name="title_setup_gmail_password">I want to authorize an account with a password</string>
     <string name="title_setup_office_auth">The error \'AUTHENTICATE failed\' can be caused by IMAP/SMTP being disabled by the system administrator</string>
     <string name="title_setup_oauth_rationale">Authorize access to your %1$s account</string>
-    <string name="title_setup_oauth_update">Authorize existing account again</string>
+    <string name="title_setup_oauth_update">Authorize an existing account again (otherwise create a new account)</string>
     <string name="title_setup_oauth_updated">Account authorization was updated</string>
     <string name="title_setup_oauth_authorize">Authorize</string>
     <string name="title_setup_select_account">Select account</string>