If we add directly from the quick add popover, the event is
all day by default. If we're editing the event, it may or
may not be an all day event. In that case, if the user decides
to give it a time, we want it to be in the local timezone.
Instead of throwing it all for GcalWindow to handle,
add a new class called GcalQuickAddPopover that handles
event creation.
Events are always all day when created from the quick
add popover, unless the user wants to change it and click
'Edit Details' button.
In the future, we'll look forward adding natural language
support, so the user can type the times directly from the
entry (like e.g. "soccer at park from 10am to 11:30am").
Georges Basile Stavracas Neto