Build: Reclassify json2php as a devDependency

Author: RoyHridoy

package-lock.json

@@ -59,6 +59,7 @@
 		"grunt-sass": "~4.0.1",
 		"grunt-webpack": "7.0.0",
 		"install-changed": "1.1.0",
+		"json2php": "0.0.12",
 		"postcss": "8.5.6",
 		"prettier": "npm:[email protected]",
 		"qunit": "~2.24.2",
@@ -158,7 +159,6 @@
 		"jquery-color": "3.0.0",
 		"jquery-form": "4.3.0",
 		"jquery-hoverintent": "1.10.2",
-		"json2php": "0.0.12",
 		"lodash": "4.17.21",
 		"masonry-layout": "4.2.2",
 		"moment": "2.30.1",