Switch from eslint to oxlint (#34166)

* Fix type imports

* Fix jsdoc

* Fixup types

* Fix stray awaits on non-thenables

* Fixup imports

* Fix splats

* Fix this-context on callbacks

* Memoise react contexts

* Prefer find/flatMap

* Make oxlint happier about our React keys

* Avoid unsafe default function params

* Fixup jsdoc

* Fixup contexts

* Switch from eslint to oxlint

* Some oxlint-related tweaks

* Iterate

* Partial revert to defer some changes and shrink diff

* Iterate

* Add eslint-plugin-element-call and enable the copyright rule

* Set strictStorePkgContentCheck

* Iterate

* Make sonar happy

* Fix new lints

apps/web/playwright/e2e/timeline/timeline.spec.ts

@@ -71,7 +71,7 @@ const sendImage = async (
 ): Promise<ISendEventResponse> => {
     const upload = await client.uploadContent(pngBytes, { name: "image.png", type: "image/png" });
     return client.sendEvent(roomId, null, "m.room.message" as EventType, {
-        ...(additionalContent ?? {}),
+        ...additionalContent,
 
         msgtype: "m.image" as MsgType,
         body: "image.png",