Rather than opening the inbox in its own window, let it appear as a
browser action popup by default, but allow promotion to its own window
if requested.
Closes#173
Previously, in the event of a failed websocket auth, we would attempt to
reconnect once a second ad infinitum. This changeset ensures that we
only reconnect automatically if the socket closed 'normally' as
indicated by the code on the socket's CloseEvent. Otherwise, show a
'Websocket closed' error on the inbox view.
Ideally we would show a more contextual error (ie, 'Unauthorized'), but
unfortunately the actual server response code is not available to our
code. It can be observed in the console output from the background page,
but programmatically, we only receive the WebSocket CloseEvent codes
listed here:
https://developer.mozilla.org/en-US/docs/Web/API/CloseEvent#Status_codes
The websocket error message is displayed by a normally-hidden but ever
present socket status element. Clicking this element will immediately
refresh the background page, which will try again to open the websocket
connection.
When first intalling, users will no longer be presented with the option
to register as a standalone client.
For developer convenience, the standalone form can still be found at
chrome-extension://.../register.html
Closes#159
Render the entire conversation from a template, because some parts of it
must be rendered conditionally if it is a group vs private conversation.
Also apply some style fixes and restore lost functionality:
* Make conversation title bar fixed.
* Widens message bubbles.
* Unhide message list.
* Restore attachment rendering.
* Restore message sending and attachment file selection.
* Style attachments file input as a paperclip.
* Style send button like on Android and make it a submit input.
lilia