Fix comment indentation in if statement without else

[Arpple]

*fixed from previous PR to not re format import when format empty if block without else the comment is not indent properly

input:

if 1 then
  -- body IfClause
end

output before:

if 1 then
-- body IfClause
end

fix to:

if 1 then
    -- body IfClause
end

and remove bracket in switch case which not match other case in src/docPrinter.ts

[nico-abram]

@trixnz Is there anything blocking this?