refactor(docs-infra): merge `.api-body` style blocks (#31574)
refactor(docs-infra): merge `.api-body` style blocks (#31574)

This commit merges the two `.api-body` style blocks, removing duplicate
styles and re-ordering sub-blocks (to group relevant styles together).
It should not affect styling.

PR Close #31574

manekinekko/angular,snaptech/angular,mgechev/angular,matsko/angular,gkalpak/angular,IdeaBlade/angular,ocombe/angular,brandonroberts/angular,StephenFluin/angular,mgechev/angular,ocombe/angular,brandonroberts/angular,IdeaBlade/angular,gdi2290/angular,JiaLiPassion/angular,StephenFluin/angular,Toxicable/angular,shairez/angular,shairez/angular,gnomeontherun/angular,mgechev/angular,filipesilva/angular,wKoza/angular,manekinekko/angular,StephenFluin/angular,wKoza/angular,angular-indonesia/angular,wKoza/angular,wKoza/angular,ocombe/angular,IdeaBlade/angular,snaptech/angular,gkalpak/angular,manekinekko/angular,brandonroberts/angular,wKoza/angular,matsko/angular,snaptech/angular,JiaLiPassion/angular,Toxicable/angular,alxhub/angular,alxhub/angular,brandonroberts/angular,blesh/angular,ocombe/angular,angular-indonesia/angular,gnomeontherun/angular,gnomeontherun/angular,gkalpak/angular,IdeaBlade/angular,mgechev/angular,manekinekko/angular,Toxicable/angular,snaptech/angular,angular/angular,Toxicable/angular,ocombe/angular,brandonroberts/angular,filipesilva/angular,alxhub/angular,filipesilva/angular,gdi2290/angular,blesh/angular,angular/angular,shairez/angular,angular-indonesia/angular,Toxicable/angular,angular-indonesia/angular,JiaLiPassion/angular,matsko/angular,matsko/angular,gdi2290/angular,alxhub/angular,StephenFluin/angular,gkalpak/angular,alxhub/angular,shairez/angular,brandonroberts/angular,blesh/angular,manekinekko/angular,snaptech/angular,snaptech/angular,StephenFluin/angular,gnomeontherun/angular,wKoza/angular,filipesilva/angular,blesh/angular,Toxicable/angular,filipesilva/angular,gdi2290/angular,JiaLiPassion/angular,gdi2290/angular,gdi2290/angular,angular/angular,ocombe/angular,shairez/angular,angular/angular,IdeaBlade/angular,mgechev/angular,manekinekko/angular,blesh/angular,matsko/angular