fix(core): remove tabindex from dynamic page header #5285

# to view logs

Job	Run time
Nx Cloud Agent 1	1h 1m 42s
Nx Cloud Agent 1	3m 34s
Nx Cloud Agent 1	4m 5s
Run affected Build, Lint and test commands	3h 14m 32s
Run affected Build, Lint and test commands	3m 6s
Run affected Build, Lint and test commands	3m 42s
Nx Cloud Agent 2	1h 1m 45s
Nx Cloud Agent 2	3m 36s
Nx Cloud Agent 2	4m 10s
Run affected e2e commands	13m 36s
Run affected e2e commands	3m 2s
Run affected e2e commands	4m 4s
Nx Cloud Agent 3	1h 2m 1s
Nx Cloud Agent 3	5m 19s
Nx Cloud Agent 3	4m 10s
Nx Cloud Agent 4	1h 2m 1s
Nx Cloud Agent 4	3m 36s
Nx Cloud Agent 4	4m 8s
Nx Cloud Agent 5	1h 1m 58s
Nx Cloud Agent 5	3m 35s
Nx Cloud Agent 5	4m 7s
Nx Cloud Agent 6	1h 2m 0s
Nx Cloud Agent 6	3m 35s
Nx Cloud Agent 6	4m 6s
Nx Cloud Agent 7	1h 1m 44s
Nx Cloud Agent 7	3m 36s
Nx Cloud Agent 7	4m 7s
Nx Cloud Agent 8	1h 2m 0s
Nx Cloud Agent 8	3m 34s
Nx Cloud Agent 8	4m 8s
Nx Cloud - Stop Agents	1m 25s
Nx Cloud - Stop Agents	1m 46s
Nx Cloud - Stop Agents	1m 26s
	13h 5m 16s

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