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/camelcase-css/index-es5.js

@@ -0,0 +1,24 @@
+"use strict";
+
+var pattern = /-(\w|$)/g;
+
+var callback = function callback(dashChar, char) {
+	return char.toUpperCase();
+};
+
+var camelCaseCSS = function camelCaseCSS(property) {
+	property = property.toLowerCase();
+
+	// NOTE :: IE8's "styleFloat" is intentionally not supported
+	if (property === "float") {
+		return "cssFloat";
+	}
+	// Microsoft vendor-prefixes are uniquely cased
+	else if (property.charCodeAt(0) === 45&& property.charCodeAt(1) === 109&& property.charCodeAt(2) === 115&& property.charCodeAt(3) === 45) {
+			return property.substr(1).replace(pattern, callback);
+		} else {
+			return property.replace(pattern, callback);
+		}
+};
+
+module.exports = camelCaseCSS;