feat: New args syntax

[blocknotes]

🆕 New syntax to provide arguments to the actions using data-arg (or data-else-arg for else action)

Example:

title_data = { if: 'blank', then: 'setValue', args: '1', target: '#article_position' }
f.input :title, input_html: { data: title_data }

ℹ️ Replace #19