Decrease karma browser disconnect time and fix slow tests

[Lipata]

Description

The following tests are slow and take > 2 seconds to finish, so that build is broken:

• Row Drag Tests #tGrid -> should be able to drag row on every hierarchical level - 3993ms
• IgxHierarchicalGrid Integration #hGrid -> Summaries -> should allow defining summaries for child grid and child should be sized correctly. - 2256ms
• IgxGrid - Cell selection #grid -> Keyboard navigation -> Should be able to select and move scroll with arrow keys and holding Shift - 2170ms
• Multi-View Calendar -> KB Navigation test -> Verify that months increment/decrement continuously on enter keydown - 2053ms
• IgxHierarchicalGrid selection #hGrid -> Cell selection -> should be able to select range with shift + mouse click and skip the child grid - 2023ms

The timeout was increased as a temporary solution, but the tests should be fixed and the timeout setting reverted: https://github.com/IgniteUI/igniteui-angular/pull/11555/commits/7db96f3c50c25188ae6fb064a806eefa14792000

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There has been no recent activity and this issue has been marked inactive.