ui: parametrise the bubble sizing scale factor
ui: parametrise the bubble sizing scale factor

HackBrexit/MinistersUnderTheInfluence,HackBrexit/MinistersUnderTheInfluence,HackBrexit/MinistersUnderTheInfluence,HackBrexit/MinistersUnderTheInfluence,HackBrexit/MinistersUnderTheInfluence,HackBrexit/MinistersUnderTheInfluence