fix(addon-doc): `DocDemo` remove `timer` and `tuiZonefreeScheduler` #9859

Job	Run time
Cypress / Component Testing	3m 51s
Build demo	1m 1s
Playwright / (1 of 9)	5m 51s
Playwright / (2 of 9)	10m 53s
Playwright / (3 of 9)	7m 36s
Playwright / (4 of 9)	4m 50s
Playwright / (5 of 9)	6m 16s
Playwright / (6 of 9)	5m 52s
Playwright / (7 of 9)	4m 39s
Playwright / (8 of 9)	4m 38s
Playwright / (9 of 9)	5m 16s
Playwright E2E Tests matrix result	1s
E2E result	7s
	1h 0m 51s

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