Refactor base token to make it reusable

What does this MR do?

Refactor the base_token.vue so it can be used directly as a token in the filtered search. In the next iteration, more customization will be enabled with it.

(Depends on !63745 (merged))

Screenshots (strongly suggested)

I did a small test with the filtered search I am working on to good effect:

Code

diff --git a/app/assets/javascripts/runner/components/runner_filtered_search_bar.vue b/app/assets/javascripts/runner/components/runner_filtered_search_bar.vue
index bec33ce2f44..d297aa06520 100644
--- a/app/assets/javascripts/runner/components/runner_filtered_search_bar.vue
+++ b/app/assets/javascripts/runner/components/runner_filtered_search_bar.vue
@@ -4,6 +4,7 @@ import { cloneDeep } from 'lodash';
 import { __, s__ } from '~/locale';
 import { OPERATOR_IS_ONLY } from '~/vue_shared/components/filtered_search_bar/constants';
 import FilteredSearch from '~/vue_shared/components/filtered_search_bar/filtered_search_bar_root.vue';
+import BaseToken from '~/vue_shared/components/filtered_search_bar/tokens/base_token.vue';
 import {
   STATUS_ACTIVE,
   STATUS_PAUSED,
@@ -26,7 +27,7 @@ const searchTokens = [
     icon: 'status',
     title: __('Status'),
     type: PARAM_KEY_STATUS,
-    token: GlFilteredSearchToken,
+    token: BaseToken,
     // TODO Get more than one value when GraphQL API supports OR for "status"
     unique: true,
     options: [
@@ -48,7 +49,7 @@ const searchTokens = [
     icon: 'file-tree',
     title: __('Type'),
     type: PARAM_KEY_RUNNER_TYPE,
-    token: GlFilteredSearchToken,
+    token: BaseToken,
     // TODO Get more than one value when GraphQL API supports OR for "status"
     unique: true,
     options: [

Does this MR meet the acceptance criteria?

Conformity

• I have included a changelog entry, or it's not needed. (Does this MR need a changelog?)
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• I have properly separated EE content from FOSS, or this MR is FOSS only. (Where should EE code go?)
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• I have self-reviewed this MR per code review guidelines.
• This MR does not harm performance, or I have asked a reviewer to help assess the performance impact. (Merge request performance guidelines)
• I have followed the style guides.
• This change is backwards compatible across updates, or this does not apply.

Availability and Testing

• I have added/updated tests following the Testing Guide, or it's not needed. (Consider all test levels. See the Test Planning Process.)
• I have tested this MR in all supported browsers, or it's not needed.
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Security

Does this MR contain changes to processing or storing of credentials or tokens, authorization and authentication methods or other items described in the security review guidelines? If not, then delete this Security section.

• Label as security and @ mention @gitlab-com/gl-security/appsec
• The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
• Security reports checked/validated by a reviewer from the AppSec team