Fix sending tab data when creating process modal

[siemiatj]

Is this a bug or feature request?

Bug

What is the current behavior?

TabID is not sent with the request.

Which are the steps to reproduce?

• create a new sales order
• add some line(s)
• select some lines and call Group Lines action
• remark that the selected lines from the included tab are not transmitted when the process instance is created => NOK

What is the expected or desired behavior?

tabId should be sent

[metas-dh]

checked again with metas-tsa: works fine in master (mf15), grouping works as well, but not yet in release => needs to be CPed

[metas-ts]

🍒 picked the 3 commits of PR https://github.com/metasfresh/metasfresh-webui-frontend/pull/2200 into the release branch