The sidebar view has 2 columns, a wide one and a smaller one on the right.
This view doesn’t have support for badges.
To change a view to edit mode, or to change the location of a card, enable edit mode: Click the Lovelace menu (three dots at the top right of the screen) and then Edit Dashboard.
You can set if a card should be placed in the main (left) column of the sidebar column (right), by pressing the arrow right or left arrow in the bar underneath the card.
On mobile all cards are rendered in 1 column and kept in the order of the cards in the config.
Alternatively, the position of the card can be configured using YAML with the
type: entities entities: - media_player.lounge_room view_layout: position: sidebar