Add contentType-specific limits, switch to lazy-init iff we encounter an
oversized file, and restyle as a toast, factoring out a generic
ToastView along the way.
Wait a little longer on initial scroll down. Previous timeout sometimes
triggered before all text is finished rendering.
Remove redundant resize calls.
Background page conversations were trying to trigger events on the inbox
list view which had been destroyed, resulting in a background page
console error of "can't read innerHeight of null".
Avoid this by removing listeners when the inbox window is closed.
The message view has three flavors so far, a normal text+attachments
message, a group update, and an end session message. This changeset
extracts the normal message rendering into its own subview, and adds
some convenience functions to the message model in order to simplify
some of that flavoring logic.
The first message sent to a new contact was throwing 'Unknown Group'.
This was because we didn't wait for the initial save to sync the `type`
attribute to indexedDB. Instead, don't trigger the conversation to open
until it has finished saving.
This is an artifact of a time when conversation elements would pop in
and out of the dom at a moment's notice, and thus needed to rebind their
event listeners regularly.
When a new message arrives, if its conversation is not already opened,
the background page opens it. If it is alrady open the window is
focused. Finally, the 'message' event is triggered, resulting in
1. the inbox refetches conversations
2. all conversations fetch new messages
TODO: only send this event to the target window
lilia