Created BrowseByPageComponent that uses the new refactored BrowseBySwitcherComponent extending AbstractComponentLoaderComponent

- Added the context to the rendersBrowseBy decorator
- Created AbstractBrowseByTypeComponent that is extended by all the browse type sections

src/app/core/shared/browse-definition.model.ts

@@ -1,5 +1,6 @@
 import { autoserialize } from 'cerialize';
 import { CacheableObject } from '../cache/cacheable-object.model';
+import { BrowseByDataType } from '../../browse-by/browse-by-switcher/browse-by-decorator';
 
 /**
  * Base class for BrowseDefinition models
@@ -12,5 +13,5 @@ export abstract class BrowseDefinition extends CacheableObject {
   /**
    * Get the render type of the BrowseDefinition model
    */
-  abstract getRenderType(): string;
+  abstract getRenderType(): BrowseByDataType;
 }