your vids look normal to me

as for the clicking/clunking its hard to say but as it was there before the rack was done then at least you can rule out the rack.

it might be worth stripping your front brakes down and cleaning them up. just calliper off, pads out, discs off, clean up, regrease and refit. might just be something caught in them or you might spot something during the job. just a thought as you say it happens mostly when on the brakes.