chore: add jimp dependency, icon padding script, and update configuration

node_modules/isomorphic-fetch/fetch-npm-node.js

@@ -0,0 +1,16 @@
+"use strict";
+
+var realFetch = require('node-fetch');
+module.exports = function(url, options) {
+	if (/^\/\//.test(url)) {
+		url = 'https:' + url;
+	}
+	return realFetch.call(this, url, options);
+};
+
+if (!global.fetch) {
+	global.fetch = module.exports;
+	global.Response = realFetch.Response;
+	global.Headers = realFetch.Headers;
+	global.Request = realFetch.Request;
+}