[Feature] support python3 string pairs

[lonnywong]

Since skip ' when inside a word

input: foo| (press ' at |)
output: foo'

Python3 f-string and bytes pairs is not working.

a = b'bytes'
b = f'{a} is not supported'

[LunarWatcher]

This is supported by default in my fork

[lonnywong]

This is supported by default in my fork

Great jobs. I'm going to switch to your fork.