Page templates

A route composes one template; it does not invent a layout. The content width depends on the job.

Page job	Width
Forms and settings	stop at form-max (640 px)
Dashboards	up to dashboard-max (1440 px)
Data pages (tables, lists)	fluid
Long text	reading-max, a 68 character measure

Page padding is 16 px below 640 px and 24 px above; 24 px above the first block; 32 px between sections. A page header sits 12 px above its toolbar. The values are the ui.layout.* tokens on the shell page.

Every page designs these states: empty, loading, error, long text and right to left.