feat: Major updates to backend structure and security enhancements

- Removed `COMMON_ERRORS.md` file to streamline documentation.
- Added `Flask-Limiter` for rate limiting and `redis` for session management in `requirements.txt`.
- Expanded `ROADMAP.md` to include completed security features and planned enhancements for version 2.2.
- Enhanced `setup_myp.sh` for ultra-secure kiosk installation, including system hardening and security configurations.
- Updated `app.py` to integrate CSRF protection and improved logging setup.
- Refactored user model to include username and active status for better user management.
- Improved job scheduler with uptime tracking and task management features.
- Updated various templates for a more cohesive user interface and experience.

backend/app/node_modules/electron-to-chromium/index.js

@@ -0,0 +1,36 @@
+var versions = require('./versions');
+var fullVersions = require('./full-versions');
+var chromiumVersions = require('./chromium-versions');
+var fullChromiumVersions = require('./full-chromium-versions');
+
+var electronToChromium = function (query) {
+  var number = getQueryString(query);
+  return number.split('.').length > 2 ? fullVersions[number] : versions[number] || undefined;
+};
+
+var chromiumToElectron = function (query) {
+  var number = getQueryString(query);
+  return number.split('.').length > 2 ? fullChromiumVersions[number] : chromiumVersions[number] || undefined;
+};
+
+var electronToBrowserList = function (query) {
+  var number = getQueryString(query);
+  return versions[number] ? "Chrome >= " + versions[number] : undefined;
+};
+
+var getQueryString = function (query) {
+  var number = query;
+  if (query === 1) { number = "1.0" }
+  if (typeof query === 'number') { number += ''; }
+  return number;
+};
+
+module.exports = {
+  versions: versions,
+  fullVersions: fullVersions,
+  chromiumVersions: chromiumVersions,
+  fullChromiumVersions: fullChromiumVersions,
+  electronToChromium: electronToChromium,
+  electronToBrowserList: electronToBrowserList,
+  chromiumToElectron: chromiumToElectron
+};