Challan Screen minor formating updates

[rohitmalpani]

Since the user would not know that the Phone number field is a 10 digit field and he may start from +91 (10 digit number) and then face error so to warn him before hand. Name of the heading "Phone Number" has to be changed to "Phone Number (10 digit number)".

Similarly, For heading "License Number" it has to be changed to "License Number (no special characters)" and for heading "Vehicle Number" it has to be changed to "Vehicle Number (no special characters)* ". Asterisk is for pre-warning to the user that its a compulsory field.

Similarly, for heading "Name of Place" it has to be changed to "Name of Place * ". Again Asterisk is for pre-warning that its a compulsory field for the user.

[gopalkriagg]

Added this to requirements.

[gopalkriagg]

I also recommend putting placeholders of example values instead of simply writing "fill phone number here" you can write "e.g. 9914212345"