[UI] Fix Side nav highlight test

[yonasberhe23]

Test: Side navigation Highlighting | Chart and sub-pages are highlighted correctly

Error: expected 'Charts Charts:\n 106.0.0105.0.1105.0.0104.0.0103.0.2103.0.1monitoring ,alertmanger ,webhook' to equal 'Charts'

[yonasberhe23]

merged and confirmed test is passing in most recent Jenkins run.