Fix incorrect y-offset for text in i3bar (2)
Fix incorrect y-offset for text in i3bar (2)

014aa7ff7441a8a2bb53bd0956aff61faaf6f37f fixed incorrect align of small
symbols, but also introduced a problem with texts with mixed large and
normal symbols. Fix it by centering the text vertically only if its
height is smaller that the saved font height.
Fixes #1543.

EvilPudding/i3,pronobis/i3,Airblader/i3,strake/i3,mh21/i3,dg-ratiodata/i3,mh21/i3,tcreech/i3,Chr1stoph/i3,ccryx/i3,saksham0808/i3,Airblader/i3,dg-ratiodata/i3,FauxFaux/i3,i3/i3,FauxFaux/i3,avrelaun/i3,tcreech/i3,netzverweigerer/i3,Chr1stoph/i3,MForster/i3,cornerman/i3,stapelberg/i3,drbig/i3,jubalh/i3,Azkae/i3,ccryx/i3,stapelberg/i3,shdown/i3,saksham0808/i3,jubalh/i3,FauxFaux/i3,yin/i3,tcreech/i3,strake/i3,Kaligule/i3,Airblader/i3-original,Matmusia/i3,pronobis/i3,pronobis/i3,FauxFaux/i3,Matmusia/i3,acrisci/i3,strake/i3,Kaligule/i3,yin/i3,avrelaun/i3,Azkae/i3,Airblader/i3-original,ccryx/i3,drbig/i3,EvilPudding/i3,ccryx/i3,Azkae/i3,mh21/i3,MForster/i3,EvilPudding/i3,shdown/i3,Chr1stoph/i3,Kaligule/i3,simonnagl/i3,saksham0808/i3,cornerman/i3,simonnagl/i3,mh21/i3,Azkae/i3,EvilPudding/i3,i3/i3,stapelberg/i3,shdown/i3,Matmusia/i3,netzverweigerer/i3,Matmusia/i3,shdown/i3,yin/i3,Kaligule/i3,saksham0808/i3,MForster/i3,drbig/i3,Airblader/i3,cornerman/i3,dg-ratiodata/i3,avrelaun/i3,i3/i3,stapelberg/i3,MForster/i3,yin/i3,strake/i3,Airblader/i3,tcreech/i3,Chr1stoph/i3,acrisci/i3,Airblader/i3-original,Airblader/i3-original,strake/i3,netzverweigerer/i3,avrelaun/i3,jubalh/i3,acrisci/i3,drbig/i3,jubalh/i3,netzverweigerer/i3,i3/i3,simonnagl/i3,Airblader/i3-original,acrisci/i3,simonnagl/i3,pronobis/i3,dg-ratiodata/i3,cornerman/i3,acrisci/i3