i18n all the remaining strings.

frontend/src/app/components/api-docs/api-docs.component.ts

@@ -2,6 +2,7 @@ import { Component, OnInit } from '@angular/core';
 import { StateService } from 'src/app/services/state.service';
 import { WebsocketService } from 'src/app/services/websocket.service';
 import { Observable, merge, of } from 'rxjs';
+import { SeoService } from 'src/app/services/seo.service';
 
 @Component({
   selector: 'app-api-docs',
@@ -16,9 +17,11 @@ export class ApiDocsComponent implements OnInit {
   constructor(
     private stateService: StateService,
     private websocketService: WebsocketService,
+    private seoService: SeoService,
   ) { }
 
   ngOnInit(): void {
+    this.seoService.setTitle($localize`:@@e351b40b3869a5c7d19c3d4918cb1ac7aaab95c4:API`);
     this.network$ = merge(of(''), this.stateService.networkChanged$);
     this.websocketService.want(['blocks']);