Upgrade Bootstrap from version 3 to 5. (#1442)

See #1442 for commit history.

Author: sayravai

.gitignore

@@ -17,6 +17,7 @@ aplus/secret_key.py
 *.sublime-workspace
 
 venv/
+venv_aplus/
 /static/
 /media/
 

aplus/settings.py

@@ -78,7 +78,7 @@
 BRAND_INSTITUTION_NAME = 'Aalto University'
 BRAND_INSTITUTION_NAME_FI = 'Aalto-yliopisto'
 
-WELCOME_TEXT = 'Welcome to A+ <small>modern learning environment</small>'
+WELCOME_TEXT = 'Welcome to A+ <small class="text-body-secondary">modern learning environment</small>'
 SHIBBOLETH_TITLE_TEXT = 'Aalto University users'
 SHIBBOLETH_BODY_TEXT = (
     'Log in with your Aalto University user account by clicking on the button below. '
@@ -100,7 +100,7 @@
     'For additional information, please see <a href="{privacy_url}">the privacy notice</a>.'
 )
 
-WELCOME_TEXT_FI = 'A+ <small>verkkopohjainen oppimisympäristö</small>'
+WELCOME_TEXT_FI = 'A+ <small class="text-body-secondary">verkkopohjainen oppimisympäristö</small>'
 SHIBBOLETH_TITLE_TEXT_FI = 'Aalto-yliopiston käyttäjät'
 SHIBBOLETH_BODY_TEXT_FI = (
     'Kirjaudu palveluun Aalto-yliopiston käyttäjätunnuksella alla olevasta painikkeesta. '
@@ -166,7 +166,7 @@
     'django.forms',
 
     # 3rd party applications
-    'bootstrapform',
+    'django_bootstrap5',
     'rest_framework',
     'rest_framework.authtoken',
     'pylti1p3.contrib.django.lti1p3_tool_config',

apps/templates/plugins/rss.html

@@ -1,4 +1,4 @@
-<h3>{{ title }} <small><a href="{{ feed.link }}">[www]</a> <a href="{{ plugin.feed_url }}">[rss]</a></small></h3>
+<h3>{{ title }} <small class="text-body-secondary"><a href="{{ feed.link }}">[www]</a> <a href="{{ plugin.feed_url }}">[rss]</a></small></h3>
 <ul class="rss-feed">
     {% for entry in entries %}
         <li>