style: format code with Prettier

This commit fixes the style issues introduced in 63e7b81 according to the output
from Prettier.

Details: #18

public/scripts/postinstall.mjs

@@ -1,19 +1,20 @@
 import fs from 'fs'
 import { exec } from 'child_process'
 import Spinnies from 'spinnies'
-
-;(async function main () {
+;(async function main() {
   const tasks = ['tsc --build ./tsconfig.build.json']
 
   if (!fs.existsSync('tsconfig.build.json')) {
-    tasks.unshift(...[
-      'ts-patch install -s',
-      'lerna run compile --concurrency 2 --parallel --include-dependencies --scope=@dumlj/tidy-cli',
-      'dumlj concurrently "tscfg --exclude "**/__template__" --exclude "**/__example__"" "deps --exclude "**/__template__" --exclude "**/__example__""',
-      'npm run compile',
-      // must compile create-cli
-      'dumlj install husky',
-    ])
+    tasks.unshift(
+      ...[
+        'ts-patch install -s',
+        'lerna run compile --concurrency 2 --parallel --include-dependencies --scope=@dumlj/tidy-cli',
+        'dumlj concurrently "tscfg --exclude "**/__template__" --exclude "**/__example__"" "deps --exclude "**/__template__" --exclude "**/__example__""',
+        'npm run compile',
+        // must compile create-cli
+        'dumlj install husky',
+      ]
+    )
   }
 
   const spinnies = new Spinnies()
@@ -27,19 +28,19 @@ import Spinnies from 'spinnies'
           stdio: 'inherit',
           env: {
             ...process.env,
-            FORCE_COLOR: true
-          }
+            FORCE_COLOR: true,
+          },
         })
 
         cp.stdout.pipe(process.stdout)
         cp.stderr.pipe(process.stderr)
-        cp.on('exit', (code) => code ? reject(code) : resolve())
+        cp.on('exit', (code) => (code ? reject(code) : resolve()))
       })
     } catch (error) {
       spinnies.stopAll('fail')
       return
     }
-  
+
     spinnies.succeed(command)
   }
 })()