Avoid special indentation for multiline blocks in parens

[nikita-volkov]

Here's a code sample showcasing how the formatting works currently:

(stringSchema 1 100)
( requiredSchemaField
    "title"
    (stringSchema 1 100)
)

Here's what I suggest to change it to:

(stringSchema 1 100)
(requiredSchemaField
  "title"
  (stringSchema 1 100)
)

Why? Because it makes formatting more consistent. Makes parensed blocks look similar regardless of the context. The indentation of the first term does not depend on the positioning of the ones following, so it's simpler. It is also currently about the only case where the step of the indentation is 4 instead of 2.