feat: add ASSET_SIDEBAR location constants

- Add LOCATION_ASSET_SIDEBAR to locations.ts
- Update Locations interface in api.types.ts
- Part of EXT-6786: Asset Sidebar App Framework Location

Author: tylerwashington888

lib/locations.ts

@@ -4,6 +4,7 @@ const locations: Locations = {
   LOCATION_ENTRY_FIELD: 'entry-field',
   LOCATION_ENTRY_FIELD_SIDEBAR: 'entry-field-sidebar',
   LOCATION_ENTRY_SIDEBAR: 'entry-sidebar',
+  LOCATION_ASSET_SIDEBAR: 'asset-sidebar',
   LOCATION_DIALOG: 'dialog',
   LOCATION_ENTRY_EDITOR: 'entry-editor',
   LOCATION_PAGE: 'page',

lib/types/api.types.ts

@@ -384,6 +384,7 @@ export interface Locations {
   LOCATION_ENTRY_FIELD: 'entry-field'
   LOCATION_ENTRY_FIELD_SIDEBAR: 'entry-field-sidebar'
   LOCATION_ENTRY_SIDEBAR: 'entry-sidebar'
+  LOCATION_ASSET_SIDEBAR: 'asset-sidebar'
   LOCATION_DIALOG: 'dialog'
   LOCATION_ENTRY_EDITOR: 'entry-editor'
   LOCATION_PAGE: 'page'