Resolve "Adapt to Core 4.0"

Closes #31

See merge request !30

Update tox.ini

See merge request !31

Update .eslintrc.js

See merge request !28

Update pyproject.toml

See merge request !29

Release 2.0

See merge request !24

Merge branch '26-matrix-parent-menu-point-is-shown-even-though-the-user-has-no-permission-to-view-it' into 'prepare-release-2.0b0'

Resolve "Matrix parent menu point is shown even though the user has no permission to view it"

See merge request !27

Resolve "URL file was accidentally deleted"

See merge request !26

This reverts commit 86d4a17b.

Translations update from Weblate

See merge request !23

Currently translated at 100.0% (2 of 2 strings)

Translation: AlekSIS/AlekSIS-App-Matrix-Frontend
Translate-URL: https://translate.edugit.org/projects/aleksis/aleksis-app-matrix-frontend/uk/

Currently translated at 100.0% (2 of 2 strings)

Translation: AlekSIS/AlekSIS-App-Matrix-Frontend
Translate-URL: https://translate.edugit.org/projects/aleksis/aleksis-app-matrix-frontend/ru/

Resolve "Adapt for SPA operation"

Closes #24

See merge request !22

Translations update from Weblate

See merge request !17

Currently translated at 100.0% (39 of 39 strings)

Translation: AlekSIS/AlekSIS-App-Matrix
Translate-URL: https://translate.edugit.org/projects/aleksis/aleksis-app-matrix/uk/

Currently translated at 100.0% (39 of 39 strings)

Translation: AlekSIS/AlekSIS-App-Matrix
Translate-URL: https://translate.edugit.org/projects/aleksis/aleksis-app-matrix/ru/

Do release 1.0

See merge request !16