fix(js_formatter): fix indention when huggable expressions break in arrow chains

[faultyserver]

Summary

I'm not sure if this came from some of the other fixes I'd made to arrow chains or was pre-existing and only came up because of those other fixes, but currently when a call argument layout with an arrow chain ends up using the middle variant (i.e., the signature chain is printed on a single line, but the body of the chain breaks), and the body is a huggable expression (i.e., an array, block body, jsx, etc.)), it gets printed with an extra level of indention:

somePromise.then(({reallyLongArguments}) => (makeTheChainFullyBreak) => [dontIndentTwice]);

// Biome Output
somePromise.then(({ reallyLongArguments }) => (makeTheChainFullyBreak) => [
    dontIndentTwice,
  ]);

// Prettier Output
somePromise.then(({ reallyLongArguments }) => (makeTheChainFullyBreak) => [
  dontIndentTwice,
]);

This PR ensures that there is only a single level of indention for the tail body, matching Prettier's output.

Test Plan

There weren't any existing tests that hit this case, so I added them to the arrow/currying.js spec test.

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[faultyserver]

Actually this is seemingly incorrect and causes block function bodies to dedent too much? Not sure how that isn't being caught by prettier tests, but I'll need to fix that before this moves forward.

[faultyserver]

Okay the newer commits have updated this to properly match Prettier's logic.

The difference is that we were pre-emptively applying indent_if_group_breaks to all bodies, but we only want to do that if the chain is a grouped call argument, since that's the only time it'll need the extra level. When it's fully broken out or fully collapsed, it'll have the appropriate indention naturally.

[Conaclos]

Feel free to merge once the conflicts resolved :)