Export options

[ruskakimov]

US letter size (8.5 by 11 inches) is the standard size for resumes in the US. Give user the option to switch between US letter and A4.

• [x] Page size (US letter, A4)
• [x] Page margins
• [x] Bullet spacing (comfortable, compact)
• [x] Restore export settings from local storage
• [x] Page loading shimmer