feat static pages system with dynamic footer and safe html rendering

src/app/shared/models/config/bootstrap-config.model.ts

@@ -7,6 +7,7 @@ import { NavigationConfig } from './navigation.model';
 import { PageConfig } from './page.model';
 import { PermissionsConfig } from './permissions.model';
 import { SeoConfig } from './seo.model';
+import { StaticPagesConfig } from './static-page.model';
 import { TenantConfig } from './tenant.model';
 import { ThemeConfig } from './theme.model';
 
@@ -24,4 +25,5 @@ export interface BootstrapConfig {
   permissions: PermissionsConfig;
   navigation: NavigationConfig;
   pages: PageConfig[];
+  staticPages?: StaticPagesConfig;
 }