add password strength progress bar and warning message

src/popup/accounts/register.component.ts

@@ -23,4 +23,21 @@ export class RegisterComponent extends BaseRegisterComponent {
         super(authService, router, i18nService, cryptoService, apiService, stateService, platformUtilsService,
             passwordGenerationService);
     }
+
+    get masterPasswordScoreWidth() {
+        return this.masterPasswordScore == null ? 0 : (this.masterPasswordScore + 1) * 20;
+    }
+
+    get masterPasswordScoreColor() {
+        switch (this.masterPasswordScore) {
+            case 4:
+                return 'bg-success';
+            case 3:
+                return 'bg-primary';
+            case 2:
+                return 'bg-warning';
+            default:
+                return 'bg-danger';
+        }
+    }
 }