Fix copybara import errors (#6694)

## Motivation for features / changes
Copybara sync will complain after #6692 :
- Filterbar doesn't use lowerCamelCase in property names (it used a "_"
prefix)
- runs table BUILD target doesn't include chip dependencies
(surprisingly this doesn't affect tests or app execution)

This PR addresses both issues

Author: hoonji

tensorboard/webapp/runs/views/runs_table/BUILD

@@ -82,6 +82,7 @@ tf_ng_module(
         "//tensorboard/webapp/alert/actions",
         "//tensorboard/webapp/angular:expect_angular_material_button",
         "//tensorboard/webapp/angular:expect_angular_material_checkbox",
+        "//tensorboard/webapp/angular:expect_angular_material_chips",
         "//tensorboard/webapp/angular:expect_angular_material_dialog",
         "//tensorboard/webapp/angular:expect_angular_material_form_field",
         "//tensorboard/webapp/angular:expect_angular_material_icon",
@@ -145,6 +146,7 @@ tf_ts_library(
         "//tensorboard/webapp/angular:expect_angular_cdk_overlay",
         "//tensorboard/webapp/angular:expect_angular_core_testing",
         "//tensorboard/webapp/angular:expect_angular_material_checkbox",
+        "//tensorboard/webapp/angular:expect_angular_material_chips",
         "//tensorboard/webapp/angular:expect_angular_material_dialog",
         "//tensorboard/webapp/angular:expect_angular_material_input",
         "//tensorboard/webapp/angular:expect_angular_material_menu",

tensorboard/webapp/runs/views/runs_table/filterbar_component.ts

@@ -44,15 +44,14 @@ export class FilterbarComponent {
   @ViewChild('filterModal', {static: false})
   private readonly filterModal!: CustomModalComponent;
 
-  _selectedFilterName = '';
+  private internalSelectedFilterName = '';
   get selectedFilterName(): string {
-    return this._selectedFilterName;
+    return this.internalSelectedFilterName;
   }
   set selectedFilterName(filterName: string) {
-    this._selectedFilterName = filterName;
+    this.internalSelectedFilterName = filterName;
   }
   // selectedFilter indirectly set using selectedFilterName.
-  _selectedFilter?: DiscreteFilter | IntervalFilter | undefined;
   get selectedFilter(): DiscreteFilter | IntervalFilter | undefined {
     return this.filters.get(this.selectedFilterName);
   }