Replace deprecated menu overrides (#443)

* Migrated to menu provider

Signed-off-by: Arnau Mora <arnyminerz@proton.me>

* Removed override

Signed-off-by: Arnau Mora <arnyminerz@proton.me>

* Cleanup

Signed-off-by: Arnau Mora <arnyminerz@proton.me>

* Fixed menus

Signed-off-by: Arnau Mora <arnyminerz@proton.me>

* Minor changes

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Signed-off-by: Arnau Mora <arnyminerz@proton.me>
Co-authored-by: Ricki Hirner <hirner@bitfire.at>