N°2039 - Rework view all notifications page (#617)

* N°2039 - Rework view all notifications page

* N°2039 - Replace modals with toasts

* N°2039 - Add bulk mode to view all notifications page

* Apply suggestions from code review

Co-authored-by: Molkobain <lajarige.guillaume@free.fr>

* Apply suggestions from code review

Co-authored-by: Molkobain <lajarige.guillaume@free.fr>

* Apply suggestions from code review

Co-authored-by: Molkobain <lajarige.guillaume@free.fr>

* Apply suggestions from code review

Co-authored-by: Molkobain <lajarige.guillaume@free.fr>

* Apply suggestions from code review

Co-authored-by: Molkobain <lajarige.guillaume@free.fr>

* Update css/backoffice/pages/_notifications.scss

* Update dictionaries/ui/application/newsroom/fr.dictionary.itop.newsroom.php

* Apply suggestions from code review

Co-authored-by: Molkobain <lajarige.guillaume@free.fr>

* Add since in phpdoc

* Change newsroom empty notification illustration

* N°2039 - Refactor code to factorize logic

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Co-authored-by: Molkobain <lajarige.guillaume@free.fr>

core/datamodel.core.xml

@@ -390,7 +390,18 @@
           <is_null_allowed>false</is_null_allowed>
         </field>
       </fields>
-      <presentation/>
+      <presentation>
+        <summary>
+        <items>
+          <item id="date">
+            <rank>10</rank>
+          </item>
+          <item id="message">
+            <rank>20</rank>
+          </item>
+        </items>
+        </summary>
+      </presentation>
       <methods/>
     </class>
   </classes>