docs(common): move `KeyValuePipe` example to `@usageNotes` (#26039)
docs(common): move `KeyValuePipe` example to `@usageNotes` (#26039)

PR Close #26039

blesh/angular,vikerman/angular,Brocco/angular,juristr/angular,mgechev/angular,blesh/angular,gdi2290/angular,trshafer/angular,alexeagle/angular,hansl/angular,petebacondarwin/angular,kegluneq/angular,sarunint/angular,jasonaden/angular,gdi2290/angular,snaptech/angular,ultrasonicsoft/angular,angular/angular,Brocco/angular,alexeagle/angular,wKoza/angular,angular/angular,petebacondarwin/angular,juristr/angular,wKoza/angular,wKoza/angular,ocombe/angular,jasonaden/angular,StephenFluin/angular,mhevery/angular,IdeaBlade/angular,matsko/angular,shairez/angular,sarunint/angular,shairez/angular,mprobst/angular,petebacondarwin/angular,kegluneq/angular,juristr/angular,brandonroberts/angular,wKoza/angular,IdeaBlade/angular,manekinekko/angular,StephenFluin/angular,trshafer/angular,alexeagle/angular,snaptech/angular,ocombe/angular,ValtoFrameworks/Angular-2,wKoza/angular,gdi2290/angular,matsko/angular,blesh/angular,alxhub/angular,mgechev/angular,kegluneq/angular,JiaLiPassion/angular,mgechev/angular,ultrasonicsoft/angular,alexeagle/angular,ocombe/angular,StephenFluin/angular,matsko/angular,Toxicable/angular,alxhub/angular,gkalpak/angular,kegluneq/angular,ocombe/angular,brandonroberts/angular,blesh/angular,shairez/angular,gkalpak/angular,Brocco/angular,alxhub/angular,snaptech/angular,hansl/angular,snaptech/angular,gkalpak/angular,ultrasonicsoft/angular,trshafer/angular,angular-indonesia/angular,gnomeontherun/angular,hansl/angular,ValtoFrameworks/Angular-2,IdeaBlade/angular,ValtoFrameworks/Angular-2,vikerman/angular,kegluneq/angular,mgechev/angular,alxhub/angular,brandonroberts/angular,filipesilva/angular,filipesilva/angular,vikerman/angular,shairez/angular,gdi2290/angular,IgorMinar/angular,hansl/angular,angular/angular,mhevery/angular,ocombe/angular,mprobst/angular,ocombe/angular,brandonroberts/angular,IgorMinar/angular,ultrasonicsoft/angular,alexeagle/angular,jasonaden/angular,brandonroberts/angular,mprobst/angular,jasonaden/angular,ultrasonicsoft/angular,gnomeontherun/angular,kegluneq/angular,gnomeontherun/angular,angular-indonesia/angular,mgechev/angular,sarunint/angular,brandonroberts/angular,mprobst/angular,ValtoFrameworks/Angular-2,juristr/angular,wKoza/angular,mhevery/angular,hansl/angular,IgorMinar/angular,ultrasonicsoft/angular,JiaLiPassion/angular,filipesilva/angular,gdi2290/angular,Toxicable/angular,angular/angular,Toxicable/angular,snaptech/angular,manekinekko/angular,StephenFluin/angular,mprobst/angular,mlaval/angular,IdeaBlade/angular,JiaLiPassion/angular,mlaval/angular,blesh/angular,hansl/angular,ValtoFrameworks/Angular-2,sarunint/angular,trshafer/angular,IgorMinar/angular,Brocco/angular,IgorMinar/angular,sarunint/angular,gdi2290/angular,mprobst/angular,Toxicable/angular,StephenFluin/angular,angular-indonesia/angular,mlaval/angular,trshafer/angular,angular-indonesia/angular,mlaval/angular,Brocco/angular,filipesilva/angular,filipesilva/angular,shairez/angular,JiaLiPassion/angular,juristr/angular,manekinekko/angular,matsko/angular,alexeagle/angular,trshafer/angular,jasonaden/angular,vikerman/angular,IgorMinar/angular,Brocco/angular,Toxicable/angular,mlaval/angular,petebacondarwin/angular,mhevery/angular,petebacondarwin/angular,Toxicable/angular,alxhub/angular,matsko/angular,sarunint/angular,manekinekko/angular,IdeaBlade/angular,gkalpak/angular,juristr/angular,snaptech/angular,mhevery/angular,jasonaden/angular,vikerman/angular,manekinekko/angular,gnomeontherun/angular,petebacondarwin/angular,manekinekko/angular,mhevery/angular,vikerman/angular