add squares to spell slots

Description

when you export the pdt will be very usefull to track the usage of the spells slots if you can add square nest to the spell slots instead of just put the number
Now you have:
"Arcanist Spells Prepared
Spell slots per day - 1st = 6, 2nd = 4, 3rd = 0, 4th = 0, 5th = 0, 6th = 0, 7th = 0, 8th = 0, 9th = 0 "

So change this for something like:
Spell slots per day
1st- ☐☐☐☐☐☐
2nd- ☐☐☐☐

Environment

None

Assignee

Unassigned

Reporter

sir_wimelef

Labels

None

Epic/Theme

None

Pending User Input

No

Components

Affects versions

Priority

Minor
Configure