feat: Enhance domain management and configuration in the extension

- Introduce default configuration settings for API key, domains database URL, update interval, and warning message template in background.js and options.js.
- Update domains database URL to a new source for improved reliability.
- Refactor domain management UI in domains_management.js to support adding, editing, and removing trusted and blocked domains with enhanced user experience.
- Implement search functionality for filtering domains in the management interface.
- Improve status messaging for user feedback during domain operations.

options.html

@@ -225,7 +225,7 @@
             <div class="form-group">
                 <label for="domainsDBURL">Database URL</label>
                 <input type="text" id="domainsDBURL" placeholder="Enter the URL for your domains database" 
-                       value="https://raw.githubusercontent.com/rrpbergsma/EnterpriseAppProtection/refs/heads/main/domains.json" />
+                       value="https://git.365devnet.eu/365DevNet/EnterpriseAppProtection/raw/branch/main/domains.json" />
                 <p class="help-text">URL must point to a valid JSON file containing domain information</p>
             </div>