Revert [r9902] (right align code line numbers with CSS).
The change in [r9902] has the side-effect of a spurious space before the first line of a code block without line nubers.
Right-aligning via CSS is not required, as line numbers are already padded by the parser.
Revert.
Authored by: milde 2024-09-23
Parent: [r9937]
Child: [r9939]