Update pyproject.toml

See merge request !1302

Drop mypy for now as it's unused

See merge request !1332

Resolve "Person description not editable in frontend"

Closes #930

See merge request !1331

Update dependency django-maintenance-mode to ^0.19.0

See merge request !1328

Merge branch '924-docs-certain-parts-of-installation-docs-are-missing-in-the-pdf-and-rendered-markdown' into 'master'

Resolve "[Docs] Certain parts of installation docs are missing in the PDF and rendered markdown"

Closes #924

See merge request !1327

Resolve "Fix calendar refetch for use with Luxon"

Closes #922

See merge request !1324

Resolve "Two migrations with 0053_... prefix exist"

Closes #917

See merge request !1322

Translations update from Weblate

See merge request !1306

Resolve "Calendar event detail view is not properly updated on refresh"

Closes #915

See merge request !1318

Add allauth middleware

See merge request !1319

Resolve "Fix default values for first time mode in calendar"

Closes #916

See merge request !1320

Merge remote-tracking branch 'origin/916-fix-default-values-for-first-time-mode-in-calendar' into 904-allow-for-creation-of-simple-events