Convert the title calculation into a template tag

Convert the calculate form title template into a template tag.
The result of the template tag is applied as the title property
of the <H3> HTML tag allowing users to view the full title on
mouse hover if the title was truncated.

Signed-off-by: Roberto Rosario <Roberto.Rosario@mayan-edms.com>

mayan/apps/appearance/settings.py

@@ -7,6 +7,7 @@ from mayan.apps.smart_settings import Namespace
 from .literals import DEFAULT_MAXIMUM_TITLE_LENGTH
 
 namespace = Namespace(name='appearance', label=_('Appearance'))
+
 setting_max_title_length = namespace.add_setting(
     default=DEFAULT_MAXIMUM_TITLE_LENGTH,
     global_name='APPEARANCE_MAXIMUM_TITLE_LENGTH', help_text=_(