files: add invenio record resources support

* Refactors the file component and service.
Co-Authored-by: Johnny Mariéthoz <[email protected]>

Author: jma

projects/rero/ng-core/src/lib/record/files/files.component.html

@@ -16,7 +16,7 @@
 -->
 <div class="card my-4">
   <div class="card-header">
-    <h5 class="m-0" translate>Files</h5>
+    <h5 class="m-0" translate>{{title}}</h5>
   </div>
   @if (!hasError && files.length) {
     <ul class="list-group list-group-flush">
@@ -25,7 +25,7 @@ <h5 class="m-0" translate>Files</h5>
           <li class="list-group-item">
             <ng-core-record-file
               [type]=type
-              [record]=record
+              [record]=parentRecord
               [file]=file
               [hasChildren]=hasChildren(file)
               [infoExcludedFields]=infoExcludedFields