Migrate `ee/app/assets/javascripts/approvals/stores/index.js` to Pinia
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[`ee/app/assets/javascripts/approvals/stores/index.js`](https://gitlab.com/gitlab-org/gitlab/blob/ec2e99fbe5a942f079cae450cad12ed23497980f/ee/app/assets/javascripts/approvals/stores/index.js) store should be migrated to Pinia using [the multi-step migration](https://docs.gitlab.com/development/fe_guide/pinia/#multi-step-migration).
Files to cover (non-exhaustive):
- `ee/app/assets/javascripts/approvals/stores/index.js`
- `ee/app/assets/javascripts/approvals/stores/state.js`
- `ee/app/assets/javascripts/projects/settings/branch_rules/mount_branch_rules.js`
- `ee/app/assets/javascripts/approvals/stores/modules/approval_settings/actions.js`
- `ee/app/assets/javascripts/approvals/stores/modules/approval_settings/getters.js`
- `ee/app/assets/javascripts/approvals/stores/modules/approval_settings/index.js`
- `ee/app/assets/javascripts/approvals/stores/modules/approval_settings/mutations.js`
- `ee/app/assets/javascripts/approvals/stores/modules/approval_settings/state.js`
- `ee/app/assets/javascripts/approvals/stores/modules/base/getters.js`
- `ee/app/assets/javascripts/approvals/stores/modules/base/index.js`
- `ee/app/assets/javascripts/approvals/stores/modules/base/mutations.js`
- `ee/app/assets/javascripts/approvals/stores/modules/base/state.js`
- `ee/app/assets/javascripts/approvals/stores/modules/license_compliance/actions.js`
- `ee/app/assets/javascripts/approvals/stores/modules/license_compliance/index.js`
- `ee/app/assets/javascripts/approvals/stores/modules/mr_edit/actions.js`
- `ee/app/assets/javascripts/approvals/stores/modules/mr_edit/index.js`
- `ee/app/assets/javascripts/approvals/stores/modules/mr_edit/mutations.js`
- `ee/app/assets/javascripts/approvals/stores/modules/mr_edit/state.js`
- `ee/app/assets/javascripts/approvals/stores/modules/project_settings/actions.js`
- `ee/app/assets/javascripts/approvals/stores/modules/project_settings/index.js`
- `ee/app/assets/javascripts/approvals/stores/modules/security_orchestration/actions.js`
- `ee/app/assets/javascripts/approvals/stores/modules/security_orchestration/index.js`
- `ee/app/assets/javascripts/approvals/stores/modules/security_orchestration/mutations.js`
- `ee/app/assets/javascripts/approvals/stores/modules/security_orchestration/state.js`
- `ee/app/assets/javascripts/approvals/components/rules/rule_input.vue`
- `ee/app/assets/javascripts/approvals/components/approval_rules_app.vue`
- `ee/app/assets/javascripts/approvals/components/approval_settings/approval_settings.vue`
- `ee/app/assets/javascripts/approvals/components/approval_settings/policy_override_warning_icon.vue`
- `ee/app/assets/javascripts/approvals/components/rule_drawer/create_rule.vue`
- `ee/app/assets/javascripts/approvals/components/rule_modal/remove_rule.vue`
- `ee/app/assets/javascripts/approvals/components/rules/empty_rule.vue`
- `ee/app/assets/javascripts/approvals/components/rules/rule_controls.vue`
- `ee/app/assets/javascripts/approvals/components/rules/rule_form.vue`
- `ee/app/assets/javascripts/approvals/components/security_configuration/unconfigured_security_rules.vue`
- `ee/app/assets/javascripts/approvals/components/security_orchestration/scan_result_policies.vue`
- `ee/app/assets/javascripts/approvals/mr_edit/app.vue`
- `ee/app/assets/javascripts/approvals/mr_edit/mr_rules.vue`
- `ee/app/assets/javascripts/approvals/mr_edit/mr_rules_hidden_inputs.vue`
- `ee/app/assets/javascripts/approvals/project_settings/project_approval_settings.vue`
- `ee/app/assets/javascripts/approvals/project_settings/project_rules.vue`
And their respective specs.
issue