Clarify language in range documentation

[nanewalt]

Improve documentation

Link

https://supabase.com/docs/reference/python/range

Describe the problem

The python range documentation has the following issues:

1. Inconsistent naming - The parameter list uses start and end while the description uses from and to
2. Incorrect offset end description - The description states that the result is limited by "starting at an offset (from) and ending at the offset (from + to)". This is incorrect as the end index is just to. E.g. range(20, 30) returns 11 items (20-30), not 51 items (20-20+30)

Describe the improvement

1. Range indices are references as from and to in parameter list. This is aligned with the documentation for other languages.
2. Description states that range offset ends at just to

Additional context

PR supabase/supabase#28781

relevant implementation