The secret-key modal rendered the header and the rows in separate
containers with fixed pixel column widths. Adding the Scope column pushed
the total width past the modal, so the body scrolled horizontally on its
own and desynced from the fixed header.
Switch to proportional flex columns (header and rows share the same
weights) with min-w-0 + truncate, and constrain the body to vertical
scroll only. Columns now always fit the modal width, so the header and
values stay aligned. The scope cell gains a title tooltip for the full
label when truncated.