button colour adjustments

targets #45 (closed)

I've adjusted the colours of the buttons a little bit so they fit better (see "new")...
While doing this, what came to my mind was to use a violet for the like button. This way we would have a much smaller contrast between the different colours... (everything in line between red and blue)... I think these three colours would fit more nicely than having this inappropriate green there... also regarding the topic of "love" this would fit and would make for a nice "Pinder brand"...

old	new	suggestion

what do you think @jeanggi90 and also @chris ?