fa: Translate Part 3 , 4 , 5 ,6.1, 6.2, 6.3 (#1439)

Part of #671 
- Translate Part `3` , `4` , `5` ,`6.1`, `6.2`, `6.3`

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Co-authored-by: Hamid R. K. Pisghadam <[email protected]>
Co-authored-by: Kaveh <[email protected]>

Author: moaminsharifi