build: Add eslint-plugin-unicorn

Signed-off-by: Kristóf Marussy <kristof@marussy.com>

2 files changed, 6 insertions, 5 deletions

diff --git a/packages/renderer/src/components/BrowserViewPlaceholder.tsx b/packages/renderer/src/components/BrowserViewPlaceholder.tsx
index 8f055e7..58407ee 100644
--- a/packages/renderer/src/components/BrowserViewPlaceholder.tsx
+++ b/packages/renderer/src/components/BrowserViewPlaceholder.tsx
@@ -44,15 +44,15 @@ export default observer(() => {
     [store],
   );
 
-  const resizeObserverRef = useRef<ResizeObserver | null>(null);
+  const resizeObserverRef = useRef<ResizeObserver | undefined>();
 
   const ref = useCallback(
     (element: HTMLElement | null) => {
-      if (resizeObserverRef.current !== null) {
+      if (resizeObserverRef.current !== undefined) {
         resizeObserverRef.current.disconnect();
       }
       if (element === null) {
-        resizeObserverRef.current = null;
+        resizeObserverRef.current = undefined;
         return;
       }
       resizeObserverRef.current = new ResizeObserver(onResize);
diff --git a/packages/renderer/src/components/StoreProvider.tsx b/packages/renderer/src/components/StoreProvider.tsx
index bb8495c..3360a43 100644
--- a/packages/renderer/src/components/StoreProvider.tsx
+++ b/packages/renderer/src/components/StoreProvider.tsx
@@ -22,11 +22,12 @@ import React, { createContext, useContext } from 'react';
 
 import type { RendererStore } from '../stores/RendererStore';
 
-const StoreContext = createContext<RendererStore | null>(null);
+// eslint-disable-next-line unicorn/no-useless-undefined -- `createContext` expects 1 parameter.
+const StoreContext = createContext<RendererStore | undefined>(undefined);
 
 export function useStore(): RendererStore {
   const store = useContext(StoreContext);
-  if (store === null) {
+  if (store === undefined) {
     throw new Error('useStore can only be called inside of StoreProvider');
   }
   return store;