Move the global header inside the left pane only, expand conversation
panels to full bleed, restyle conversation list items and selected state.
// FREEBIE
This flow broke a bit with transition to modal debug log.
Restructure such that the loading class can be applied to an appropriate
element inside the modal. Ensure that the input elements are hidden when
submit is clicked, the result elements are shown when the log upload is
completed.
// FREEBIE
The button for the conversation menu was rendering on top of the global
menu since the global menu was part of a position-fixed element and thus
except from the normal document flow.
// FREEBIE
Remove the 1px gray border around the window. This allows to the window to integrate seamlessly with custom window managers which use the background color for the titlebar.
The file input area has a transparent border. When a file is dragged
above that area, the border turns blue. This helps the user understand
that this is the correct drop-off area.
Messages with images or media were causing the scroll position to jump
around when they loaded, because rendering them changed the height of their
elements from 0 to full-height sometime after they were inserted into
the DOM.
Now when rendering attachments, we wait for them to load so they can
render at full height immediately, then warn our parent message list
before and after a potential height change, so the scroll position can
be saved and reset.
// FREEBIE
Only load the most recent messages when initially rendering a
conversation. Scrolling to the top of a message list loads older
messages.
This required some slight refactoring of how we insert message elements
into the dom. If the message is added to the end of the collection,
append it at the end. Otherwise, assume it is an older message and
prepend it.
When adding elements to the top, reset the scrollPosition to its
previous distance from scrollHeight. This keeps the current set of
elements fixed in the viewport.
// FREEBIE
