feat tabsize

[xav-ie]

Previous PR (merge this first pls!): #78

• test(update): test hover was outdated
• test(tokenPaste.vert): disable - not yet supported

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This PR:

• feat(tab_size): add support
• test(tab_size): verify configurable tab size

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^ please just look at these last two commits.

After this PR, tab size config just works.

I will have follow up to add it to the cli as an option.

Addresses: #54

[nolanderc]

Awesome! 🐱