Fix formatting edge cases and add newline_at_eof

[lsfratel]

Summary

• Fix wrapping for faultdef declarations and multiline declaration alignment
• Fix assignment alignment around doc comments
• Add newline_at_eof config option, defaulting to false
• Stabilize alignment for long call declarations
• Add align_string_concat formatter option

[ManuLinares]

Why the ternary in here got like this?

	ulong total_count    = ready ? compute_total_count(context, state, item)
		: 0;

[lsfratel]

it’s because the test runs with an 80-column limit, and aligning the = pushes the ternary over that limit, since ternaries currently only wrap before :, the fallback moves to the next line