Blender Git Loki

UI: Fix node socket alignment in some cases

The patch fixes some misalignments in the nodes' sockets/options
recently introduced in 26d2caee3ba0, while maintaining the original
fix for T92268.

The original fix made the top padding always of the same size; while
that works when the first row of the other node is `Socket | Socket`,
it doesn't for other more common cases, `like Socket | Node Option`,
where the text results misaligned.

Differential Revision: https://developer.blender.org/D13451