Convert JS utilities to services

[openXapps]

Convert JS in utilities folder to services.

• defaultdata.js
• localstorage.js

Couple of hints for localstorage.js - initialUse()

const currVersion = getDefaultData().settings.version;
let skipValidation = false;

// Version 0.4.0 changes
if (!skipValidation && currVersion == '0.4.0') {
if (settings.statusOK && settings.data.version !== currVersion) {
if (typeof settings.data.theme.template !== 'undefined') {
saveLocalStorage(storageObject.setting, { ...settings.data, theme: settings.data.theme.template });
}
}
}