Resolve "Show description in template"

Closes #256

See merge request AlekSIS!260

Resolve "Reformat AlekSIS SVG"

Closes #253

See merge request AlekSIS!259

Update dependency celery-haystack to ^0.7.0

See merge request AlekSIS!252

# Conflicts:
#   poetry.lock

Update dependency django-otp to v0.9.0

See merge request AlekSIS!254

# Conflicts:
#   poetry.lock

Update dependency libsass to ^0.20.0

See merge request AlekSIS!255

# Conflicts:
#   poetry.lock

Update dependency flake8-isort to v3

See merge request AlekSIS!257

# Conflicts:
#   poetry.lock

Update dependency sphinx to v3

See merge request AlekSIS!258

# Conflicts:
#   poetry.lock

Favicon improvements

Closes #252

See merge request AlekSIS!251