Resolve "Create a collection"

Closes #38 (closed) and #25 (closed) #27 (closed) #37 (closed)

roles/ynh_apps/tasks/app.yml

 ---
 #-----------------------------------------------------------------------------#
 # ansible-yunohost allows to deploy Yunohost using Ansible                    #
-# Copyright 2021-2021 Lydra https://www.lydra.fr/                             #
+# Copyright 2021-present Lydra https://www.lydra.fr/                          #
 #                                                                             #
 # this program is free software: you can redistribute it and/or modify        #
 # it under the terms of the GNU General Public License as published by        #
@@ -24,6 +24,8 @@
      --label "{{ ynh_app.label }}" \
      --args "{% for key, value in ynh_app.args.items() %}{{ key }}={{ value }}{% if not loop.last %}&{% endif %}{% endfor %}"
   changed_when: False
+  tags:
+    - apps
 
 # Post-installation part
 - name: Create post-install template
@@ -35,6 +37,8 @@
     mode: "{{ (item.type == 'script') | ternary('740', '660') }}"
   loop: "{{ ynh_app.post_install|default([]) }}"
   when: ynh_app.post_install
+  tags:
+    - apps
 
 - name: Launch post-install script
   ansible.builtin.command: "{{ ynh_app_post_install.dest }}"
@@ -44,6 +48,8 @@
   loop_control:
     loop_var: ynh_app_post_install
   when: ynh_app_post_install.type == "script"
+  tags:
+    - apps
 
 - name: Remove script after execution
   ansible.builtin.file:
@@ -53,3 +59,5 @@
   loop_control:
     loop_var: ynh_app_post_install
   when: ynh_app_post_install.type == "script"
+  tags:
+    - apps