[Table Visualization] [CCI] Remove custom styling for text-align:center in favor of OUI utility class oui-textCenter

[curq]

Is your feature request related to a problem? Please describe.

As part of the OUI compliance audit, it was discovered that instead of OUI utility class, custom styling was used.

OpenSearch-Dashboards/src/plugins/vis_type_table/public/components/table_vis_app.scss

Lines 20 to 23 in bd7d707

	// Style for table component title
	.visTable__component__title {
	text-align: center;
	}

Describe the solution you'd like

Use oui-textCenter instead.

Describe alternatives you've considered

Keep the custom styling, but it is not ideal.

Additional context

Audit from where the suggestions comes #4162.

[joshuarrrr]

completed via #4164