Merge pull request #325 from rklus16/develop

offline/online modes

#322
Submit as email if no one is online
Launch the chat container to display the message
Rework to move comments out of footer into unified interface
Convert to the email interface

when operators failed to answer and clients want to send an email instead
change email placeholder text
Send details about the answering site
Display info about the answering site

also, reduce js by removing now-unessary display logic, as it will always be displayed.
Move the website name into the header
don't send answering site info

It will be fine to use information on the current page
Clear out the old conversation before starting a new one.
flatter design, less shadows, color adjustment