Dispatch issue with set_style for LocTitle

[jrycw]

It seems that the dispatch of set_style for LocTitle is still under development and hasn't been made public yet. However, the implementation seems a bit off because return data._styles.append(info) will return None, which behaves differently compared to other functions in the same module.

great-tables/great_tables/_locations.py

Line 402 in 14ce2c5

return data._styles.append(info)