Refs #367: apply minimalist styles to Surse table
Refs #367: apply minimalist style to Licențe table
Refs #367: fix bug on Polar Unelte table: info icon not visible
Refs #367: style Licențe table on Polar too
Refs #367: style Surse table on Polar too
Refs #367: style Topul voluntarilor table
Refs #367: for Topul voluntarilor tables, add rules after every 3 entries