Replace JSON with TOML using tomland

[silverweed]

Addresses #77.

I removed the dependency from Aeson and transformed stuff.json into TOML format. In doing so I added the path key (which was the dictionary key before) and turned the Json dictionary itself into an array named titles.

From:

{
  <path>: { /* entry */ },
  ...
}

to (conceptually):

[
  {
    "path": <path>,
    /* entry */
  },
   ...
]

I (manually) tested the change and it seems to work fine.

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This change is 

[willbasky]

---

src/Labels.hs, line 3 at r1 (raw file):

{-# LANGUAGE LambdaCase           #-}
{-# LANGUAGE OverloadedStrings    #-}

This pragmas are included in .cabal file already.

[willbasky]

---

src/Labels.hs, line 1 at r1 (raw file): Is there any unused functions in this module?

[willbasky]

---

src/Labels.hs, line 23 at r1 (raw file): Let use meta <- T.decodeUtf8 <$> BS.readFile file where T and BS is from

import qualified Data.ByteString as BS
import qualified Data.Text as T

because of https://www.snoyman.com/blog/2016/12/beware-of-readfile

[willbasky]

---

src/Labels.hs, line 1 at r1 (raw file):

Previously, willbasky (Vladislav Sabanov) wrote…

Is there any unused functions in this module?

https://guide.aelve.com/haskell/how-to-make-code-warning-free-qkostv6r#item-ogh2yr1a

[silverweed]

Thanks for the reviews and explanations, I'll push the fixes as soon as I have time :)

[willbasky]

Thank you very much for contributing!

[willbasky]