This is per the designs. Animation doesn't feel required here.
Like the rest of this series, this rewrites a component to be more purpose-built to help match the designs and to solve the smallest possible problem.
This all-new component handles breadcrumbs a bit more smoothly for the app by always listening to changes even if the component isn't present. This allows the breadcrumbs to remain up to date for when the user re-enables breadcrumbs.
The new behaviour is that we turn breadcrumbs on once the user has a room, and we don't turn it back off for them.
This also introduces a new animation which is more stable and not laggy, though instead of sliding the breadcrumbs pop. This might be undesirable - to be reviewed.
This is a work in progress, but covers the coarse areas. This uses all-new classes to better describe what everything is, and to reduce the number of selectors we keep track of.
This is primarily layout for the list and not actually the final structure. For example, some buttons are missing and other areas are not styled correctly - the idea in this commit was to get things roughly in the right place and work on it.
Though we consider the "room list" to mean the RoomList component specifically, the room list is actually the entire left panel as far as the user is concerned.
The new proposed designs for the room list modify the whole left panel, so we had might as well break it into new and old now instead of later. This "new" left panel is a bare-bones implementation and meant to only provide the absolute basic feature set to function for those who enable the experimental room list, for whatever reason. This is not intended to be a final implementation, or even remotely close to what it could be. An example of this is the lack of breadcrumbs. Given they are likely to change, they are excluded from this temporary skeleton completely.
This also includes a purple/pink bar between the tag panel and left panel. This is so we can, if needed, differentiate between people who made the mistake of turning on the experimental room list while the overall aesthetic makes it indistinguishable. Once the designs are moderately approved, we can (and definitely should) remove the hideous indicator.