[DateTimePicker] Ensure toolbar viewType is correctly updated

[LukasTy]

Noticed that the aria-label on the editing mode button doesn't change when switching tabs or changing view by clicking toolbar sections.

• ensure the viewType is dynamically updated from DateTimePickerToolbar;
• create a type for 'calendar' | 'clock'
• remove redundant types in localization files

[mui-bot]

These are the results for the performance tests:

Test case	Unit	Min	Max	Median	Mean	σ
Filter 100k rows	ms	583.3	1,011.2	646.6	724.94	150.222
Sort 100k rows	ms	622.3	1,097.2	844.8	883.22	156.396
Select 100k rows	ms	224	318.3	266.6	267.78	38.681
Deselect 100k rows	ms	147.7	291.7	194.6	202.46	48.72

Generated by 🚫 dangerJS against 4f136fa

[flaviendelangle]

Do we only have these issues on the master branch or do we need to port some of them to next ?

[LukasTy]

Do we only have these issues on the master branch or do we need to port some of them to next?

Toolbar is viewType agnostic in "next" because we've removed the toggle between calendar and text input. 😉