Check 'select all' when all keywords are selected

src/app/components/shared/_dialogs/spacy-dialog/spacy-dialog.component.html

@@ -6,6 +6,7 @@
                       id="checkAll"
                       (change)="selectAll(checkall.checked)"
                       #checkall
+                      [checked]="allKeywordsSelected()"
                       matTooltip="{{ 'spacy-dialog.select-all-hint' | translate }}"
                       matTooltipShowDelay="750">
         </mat-checkbox>

src/app/components/shared/_dialogs/spacy-dialog/spacy-dialog.component.ts

@@ -119,6 +119,15 @@ export class SpacyDialogComponent implements OnInit, AfterContentInit {
     }
   }
 
+  allKeywordsSelected(): boolean {
+    for(const kw of this.keywords) {
+      if(!kw.selected) {
+        return false;
+      }
+    }
+    return true;
+  }
+
   manualKeywordsToKeywords(){
     const tempKeywords = this.manualKeywords.replace(/\s/g,'');
     if(tempKeywords.length) {