Get line data given line ID

[saihaj]

Currently we have custom hooks that get us current line data from the context. But the problem is when we want a specific line from line ID which is required to resolve #235, #511 we can't really get it without hurting performance. Solution that I can think is:

• Add an action in controller that does this but we will be querying so much and not good for performance.
• In case of #511, if I fetch all the data to fulfill the shape I want so that I can run it through our in copy hotkeys we overfetch for the users who don't even use this at all or someone who just uses it once.

Solution: Some magical function that returns something like this (so it is consistent what we have rn) but also not affecting performance.