Make the size of a browse result page configurable.

src/config/browse-by-config.interface.ts

@@ -1,21 +1,30 @@
 import { Config } from './config.interface';
 
 /**
- * Config that determines how the dropdown list of years are created for browse-by-date components
+ * Config that determines how the dropdown list of years are created for
+ * browse-by-date components.
  */
 export interface BrowseByConfig extends Config {
   /**
-   * The max amount of years to display using jumps of one year (current year - oneYearLimit)
+   * The max amount of years to display using jumps of one year
+   * (current year - oneYearLimit)
    */
   oneYearLimit: number;
 
   /**
-   * Limit for years to display using jumps of five years (current year - fiveYearLimit)
+   * Limit for years to display using jumps of five years
+   * (current year - fiveYearLimit)
    */
   fiveYearLimit: number;
 
   /**
-   * The absolute lowest year to display in the dropdown when no lowest date can be found for all items
+   * The absolute lowest year to display in the dropdown when no lowest date can
+   * be found for all items.
    */
   defaultLowerLimit: number;
+
+  /**
+   * Number of entries in the viewport of a paginated browse-by list.
+   */
+   pageSize: number;
 }