Apply Fourmolu to `cardano-constitution` package

[Unisay]

This task is to apply fourmolu configuration specified by the fourmolu.yaml in the project root to the subfolder (package) in the issue title.

It is ok to skip modules initially by adding the FOURMOLU_DISABLE annotation and re-format them later in the opportunistic manner. Please check the official doc on how to use "magic comments".

You can follow these steps:

$ cd cardano-constitution
$  find src -name "*.hs" -exec fourmolu -i {} \; # reformats all *.hs under the `src` folder with fourmolu
$  find src -name "*.hs" -exec stylish-haskell -i {} \; # applies `stylish-haskell` on top of the fourmolu

Then scrutinize the diff manually disabling fourmolu formatting where appropriate using the "magic comments".