feat(map-format): format key-value pairs to be inline

[ranpy13]

Before this PR

the static factory methods for Map and ImmutableMaps are treated as regular methods, where each argument is expected to be in a new line. But for these methods, it makes more sense to have the key-value pairs inline, for better readability and context.

After this PR

the key-value pairs of Map factory method will be in the same line, allowing for better readability.

Possible downsides?

previously correctly formatted files will now show up as failing formatting checks and can potentially create a big diff across a lot of files.

closes: #1602

[palantirtech]

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feat(map-format): format key-value pairs to be inline

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