extracted general modules and variables to seperate files

src/assets/js/init.js

+const { ipcRenderer } = require('electron');
+const { dialog, shell, app } = require('electron').remote;
+const path = require('path');
+const SHAPI = require( path.resolve(__dirname, './assets/js/api.js') );
+const fs = require('fs');
+const rimraf = require('rimraf');
+const ncp = require('ncp');
+const http = require('http');
+const unzipper = require('unzipper');
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src/assets/js/system.js

+console.log("Initializing System.");
+
+let systemOS = process.platform;
+let tempDirLocation = app.getPath('temp');
+let gameDirLocation;
+
+// TODO: Mac/Linux Support
+// TODO: Custom Dir
+if(process.platform == "win32") {
+    gameDirLocation = path.join(app.getPath("userData"), "../..", "LocalLow", "Super Spin Digital", "Spin Rhythm XD", "Custom");
+} else {
+    console.error("Unsupported system");
+}
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