docs: fix typo in app.component.ts (#47384)
docs: fix typo in app.component.ts (#47384)

identifer -> identifier

PR Close #47384

angular/angular,gkalpak/angular,gkalpak/angular,gnomeontherun/angular,angular/angular,gnomeontherun/angular,angular/angular,angular-indonesia/angular,angular-indonesia/angular,angular-indonesia/angular,angular/angular,gkalpak/angular,angular-indonesia/angular,gnomeontherun/angular,gnomeontherun/angular,gkalpak/angular