Delete the report action for Vaadin Platform

[szolo]

Viewport toolbar contains "Report" action with which you can either submit the feedback (via Intercom) or send the email with error stacktrace (if it occurred). It will become redundant as soon as we will have https://github.com/vaadin/designer/issues/2183 in place.

Remove it, but only for the Vaadin Platform. It still should be present for the Framework.

At the same time, move the "Report" action logic to the Intercom: if error occurs - open the Intercom chat with the prefilled error information. Check whether it's possible to use attachments for the stacktrace or not. Make sure that formatting is ok, stacktraces could be long (limit them if needed).

[tanbt]

Related PR https://github.com/vaadin/designer-internal/pull/1706.

This PR introduces EmailService to send feedback. Error feedback should be refactored to this service when removing report button in Toolbar.

[stale[bot]]

Hello there!

It looks like this issue hasn't progressed lately. There are so many issues that we just can't deal them all within a reasonable timeframe.

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