Add prettier

Pinned at ^2.8.8 due to version of npm in 22.04 (3.0.0+ doesn't work)

.gitignore

@@ -3,9 +3,10 @@ composer.phar
 html/ad*
 html/analytics*
 import/
+node_modules/
 php/config.php
 php/secrets.php
 vendor/*
 *.pyc
 .idea
-.DS_Store
+.DS_Store

.prettierignore

@@ -0,0 +1,9 @@
+# Ignore artifacts:
+build
+coverage
+vendor
+composer.json
+composer.lock
+*.html
+*.min.css
+*.min.js

.prettierrc.json

@@ -0,0 +1 @@
+{}

INSTALL

@@ -37,6 +37,10 @@ sudo certbot --nginx -d [YOUR_DOMAIN]
 curl -sS https://getcomposer.org/installer | sudo php -- --install-dir=/usr/local/bin --filename=composer
 sudo -u openflights php /usr/local/bin/composer install
 
+# Set up npm packages if you're going to be developing OpenFlights
+sudo apt-get install npm
+sudo -u openflights npm install
+
 # Generates locales for language support
 cd openflights
 find locale -name *utf8 -printf '%f ' | xargs sudo locale-gen

package.json

@@ -0,0 +1,9 @@
+{
+  "devDependencies": {
+    "prettier": "^2.8.8"
+  },
+  "scripts": {
+    "lint": "prettier --check .",
+    "fix": "prettier --write ."
+  }
+}