Database: Small changes in the actor section

[ghost]

This PR does the following changes in the actor section of the database:

• Ensure that the initial level setting is never greater than the maximum level setting
• Set faceset size to 100x100
• Set charset size to 52x68
• Set battleset size to 52x52
• Change critical hit rate text to "1 in x turns"
• Fix typo in "Custom properties"
• Fix crash on trying to select a faceset or charset if no actor is selected
• Fix display of the actor stat curves (lower section was cut off)
• Set faceset picker preview size to 196x196
• Set charset picker preview size to 196x132