Add the filter list icon (#6693)

## Motivation for features / changes
I followed my own instructions documented in #6692
I did encounter an issue with the tf mirror cli but I managed to work
around it.

Author: rileyajones

tensorboard/webapp/BUILD

@@ -344,6 +344,7 @@ tf_svg_bundle(
         "@com_google_material_design_icon//:expand_less_24px.svg",
         "@com_google_material_design_icon//:expand_more_24px.svg",
         "@com_google_material_design_icon//:filter_alt_24px.svg",
+        "@com_google_material_design_icon//:filter_list_24px.svg",
         "@com_google_material_design_icon//:flag_24px.svg",
         "@com_google_material_design_icon//:fullscreen_24px.svg",
         "@com_google_material_design_icon//:fullscreen_exit_24px.svg",

tensorboard/webapp/testing/mat_icon_module.ts

@@ -39,6 +39,7 @@ const KNOWN_SVG_ICON = new Set([
   'expand_less_24px',
   'expand_more_24px',
   'filter_alt_24px',
+  'filter_list_24px',
   'flag_24px',
   'fullscreen_24px',
   'fullscreen_exit_24px',

third_party/js.bzl

@@ -214,6 +214,10 @@ def tensorboard_js_workspace():
                 "http://mirror.tensorflow.org/raw.githubusercontent.com/google/material-design-icons/b3f05bfbf4329a5b63f50a720f867c2bac163f98/src/navigation/arrow_forward/materialicons/24px.svg",
                 "https://raw.githubusercontent.com/google/material-design-icons/b3f05bfbf4329a5b63f50a720f867c2bac163f98/src/navigation/arrow_forward/materialicons/24px.svg",
             ],
+            "da5f9ac466b2a296bdbbcee8eef2eaecf992207e83b8304451701e2e13a2bc0f": [
+                "http://mirror.tensorflow.org/raw.githubusercontent.com/google/material-design-icons/b3f05bfbf4329a5b63f50a720f867c2bac163f98/src/content/filter_list/materialicons/24px.svg",
+                "https://raw.githubusercontent.com/google/material-design-icons/b3f05bfbf4329a5b63f50a720f867c2bac163f98/src/content/filter_list/materialicons/24px.svg",
+            ],
         },
         rename = {
             "ic_arrow_downward_24px.svg": "arrow_downward_24px.svg",
@@ -284,5 +288,7 @@ def tensorboard_js_workspace():
             "https://raw.githubusercontent.com/google/material-design-icons/b3f05bfbf4329a5b63f50a720f867c2bac163f98/src/navigation/arrow_back/materialicons/24px.svg": "arrow_back_24px.svg",
             "http://mirror.tensorflow.org/raw.githubusercontent.com/google/material-design-icons/b3f05bfbf4329a5b63f50a720f867c2bac163f98/src/navigation/arrow_forward/materialicons/24px.svg": "arrow_forward_24px.svg",
             "https://raw.githubusercontent.com/google/material-design-icons/b3f05bfbf4329a5b63f50a720f867c2bac163f98/src/navigation/arrow_forward/materialicons/24px.svg": "arrow_forward_24px.svg",
+            "http://mirror.tensorflow.org/raw.githubusercontent.com/google/material-design-icons/b3f05bfbf4329a5b63f50a720f867c2bac163f98/src/content/filter_list/materialicons/24px.svg": "filter_list_24px.svg",
+            "https://raw.githubusercontent.com/google/material-design-icons/b3f05bfbf4329a5b63f50a720f867c2bac163f98/src/content/filter_list/materialicons/24px.svg": "filter_list_24px.svg",
         },
     )