All Heading elements apply overflow:hidden via safeTextStyle in primitives.tsx.
At 1.5× heading font size with lineHeight 1.2, the line box is too tight to
fully render descenders (g, p, y, etc.) in the resume header name field,
causing them to appear visually cut off.
Raising headerNameLineHeight from 1.2 to 1.3 adds enough vertical room for
descenders across all 13 templates that share this constant.
Fixes#3042
