feat: Enhance Person data structure and improve TablePersons component

- Updated Person interface to include first_name and last_name fields for better clarity and organization handling.
- Modified TablePersons.vue to support new fields, including improved pagination and drag-and-drop functionality.
- Added loading states and error handling for form controls within the table.
- Enhanced the visual layout of the table with responsive design adjustments.
- Updated solr.xslt to correctly reference ServerDateModified and EmbargoDate attributes.
- updated AvatarController
- improved download method for editor, and reviewer
- improved security for officlial download file file API: filterd by server_state

public/assets2/solr.xslt

@@ -111,7 +111,14 @@
         <!--5 server_date_modified -->
         <xsl:if test="ServerDateModified/@UnixTimestamp != ''">            
             <xsl:text>"server_date_modified": "</xsl:text>             
-            <xsl:value-of select="/ServerDateModified/@UnixTimestamp" />    
+            <xsl:value-of select="ServerDateModified/@UnixTimestamp" />    
+            <xsl:text>",</xsl:text>         
+        </xsl:if>
+        
+        <!--5 embargo_date -->
+        <xsl:if test="EmbargoDate/@UnixTimestamp != ''">            
+            <xsl:text>"embargo_date": "</xsl:text>             
+            <xsl:value-of select="EmbargoDate/@UnixTimestamp" />    
             <xsl:text>",</xsl:text>         
         </xsl:if>