FEAT #12091 TIME 0:15 add technical id in custom fields

package.json

@@ -52,7 +52,7 @@
     "@angular/router": "^8.2.12",
     "@types/datatables.net": "^1.10.18",
     "@types/jquery": "^2.0.53",
-    "@types/node": "^7.10.6",
+    "@types/node": "^7.10.8",
     "ajv": "^6.10.2",
     "hammerjs": "^2.0.8",
     "html-minifier": "^3.5.21",

src/frontend/app/administration/customField/custom-fields-administration.component.html

@@ -27,6 +27,10 @@
                                     </mat-panel-description>
                                 </mat-expansion-panel-header>
                                 <div class="col-md-12">
+                                    <mat-form-field>
+                                        <input matInput name="id" [(ngModel)]="custom.id" disabled
+                                            [placeholder]="lang.technicalId" [value]="custom.id">
+                                    </mat-form-field>
                                     <mat-form-field>
                                         <input matInput name="label" [(ngModel)]="custom.label"
                                             [placeholder]="lang.label" [value]="custom.label">