feat: set app.enableRendererProcessReuse to true by default (#22336)

* feat: set app.enableRendererProcessReuse to true by default

* chore: add context aware info to breaking changes doc

* spec: fix nodeIntegration in child windows test for rendererprocessreuse

* spec: fix remote listeners in destroyed renderers spec as the error is now async

* Update api-browser-window-spec.ts

* chore: deprecate affinity

* chore: fix docs

* spec: handle tests crashing without an exist code

* spec: update tests for new rendererprocessreuse default

* spec: with renderer process re-use we get to destroy less views

spec-main/api-browser-window-spec.ts

@@ -2406,18 +2406,6 @@ describe('BrowserWindow module', () => {
         const webPreferences = (childWebContents as any).getLastWebPreferences()
         expect(webPreferences.foo).to.equal('bar')
       })
-      it('should have nodeIntegration disabled in child windows', async () => {
-        const w = new BrowserWindow({
-          show: false,
-          webPreferences: {
-            nodeIntegration: true,
-            nativeWindowOpen: true
-          }
-        })
-        w.loadFile(path.join(fixtures, 'api', 'native-window-open-argv.html'))
-        const [, typeofProcess] = await emittedOnce(ipcMain, 'answer')
-        expect(typeofProcess).to.eql('undefined')
-      })
 
       describe('window.location', () => {
         const protocols = [