fix: spaces -> tabs; trim trailing spaces

[Nightblade]

This may be a controversial PR since it makes a large number of inconsequential changes to the code base (noise). I won't cry if it's rejected. 😁

• change space indentation to tab indentation
• remove trailing spaces
• remove lines that contain only spaces or tabs
• change mixed indentation to tab indentation
• tried to avoid changing mixed indentation where it's used to improve code readability
• bonus: fixed a typo

There are trailing spaces in the auto-generated files listed below which I hope to fix in a separate PR:

\src\Data\TimelessJewelData\LegionPassives.lua
\src\Data\QueryMods.lua
\src\Data\TattooPassives.lua

[Wires77]

If you make me a linter that enforces this going forward I'm much more likely to accept this PR. Otherwise I see spaces making their way back into the codebase later anyway

[Nightblade]

NP