Header actions are far from content on wide screens

Problem On wide displays the header's breadcrumbs and actions (most importantly New doc) sit at the far edges of the window, while page content is a narrow centered column. On my ~2000px-wide screen, "New doc" ends up roughly 1,000px from the Home heading and the list it relates to. It reads as browser chrome rather than part of the page, and it's a long pointer trip for the most common action. <img width="3565" height="2132" alt="file-49e08a2ea3a168efc5d81c476e3d771d" src=" /> On a laptop the gap is small enough that it isn't noticeable, which is probably why it hasn't come up much. But on large or ultrawide monitors, and with the sidebar collapsed, the empty space between the actions and the content becomes the main thing you see. Proposal Keep the header bar full-width (background and blur unchanged), but place its breadcrumbs, title and actions in a column that matches the page content width: …