fix: access location outside of browser

packages/sanity/src/core/store/renderingContext/coreUiRenderingContext.ts

@@ -16,7 +16,7 @@ import {isCoreUiRenderingContext, type StudioRenderingContext} from './types'
 // However, the URL query string is liable to be lost during Studio's lifecycle (for example, when
 // the user navigates to a different tool). Therefore, the URL query string is captured as soon as
 // this code is evaluated, and later referenced when a consumer subscribes to the store.
-const INITIAL_URL_SEARCH = location?.search
+const INITIAL_URL_SEARCH = typeof location === 'object' ? location.search : ''
 
 const CORE_UI_MODE_NAME = 'core-ui'
 const CORE_UI_CONTEXT_SEARCH_PARAM = '_context'