Getting ready for 1.2.0 release: many smaller requests implemented

- Implements #7
- Implements #42 and therefore #64
- Improved #53
- Implements #59
- Implements #61
- Implements #63
- Implements #80
- Implements #84
- Added Info page
- Removed Help page
- Bumped version number to 1.2.0
- Fixed a bug where wide mode was still 720px wide
- Created FUNDING.yml
- Reorganised arguments in README.MD and documented new options
- Updated SECURITY.MD
- Added display of last read time and read count
- Increased default width to 800px to make UI less cluttered
- Reorganised index page
- New, better attach file button

I want to spend some time testing these changes and let everyone have a look at them before tagging and releasing new artifacts.

templates/pastalist.html

@@ -100,7 +100,7 @@
                     {{pasta.expiration_as_string()}}
                 </td>
                 <td>
-                    <a style="margin-right:1rem" id="copy-button"
+                    <a style="margin-right:1rem; cursor: pointer;" id="copy-button"
                         data-url="{{ args.public_path }}/url/{{pasta.id_as_animals()}}">Copy</a>
                     {% if pasta.editable %}
                     <a style="margin-right:1rem" href="{{ args.public_path }}/edit/{{pasta.id_as_animals()}}">Edit</a>