[PLUGIN][DeleteNote] Delete Note action implemented

Replaces Note content with a tombstone, removes any attachment relations and decrements their lives (possibly even removing the attachment), and creates the respective activity

plugins/DeleteNote/templates/delete_note/delete_note.html.twig

@@ -0,0 +1,19 @@
+{% extends 'stdgrid.html.twig' %}
+{% import "/cards/note/view.html.twig" as noteView %}
+
+{% block title %}{{ 'Delete ' | trans }}{{ 'note' | trans }}{% endblock %}
+
+{% block stylesheets %}
+        {{ parent() }}
+        <link rel="stylesheet" href="{{ asset('assets/default_theme/css/pages/feeds.css') }}" type="text/css">
+{% endblock stylesheets %}
+
+{% block body %}
+        {{ parent() }}
+        <div class="page">
+                <div class="main">
+                        {{ noteView.macro_note_minimal(note) }}
+                        {{ form(delete) }}
+                </div>
+        </div>
+{% endblock body %}