[Tech] Make it possible to disable the React developer tools (#1895)

* Make it possible to disable the React dev tools

* Add note about the new variable to README

README.md

@@ -246,6 +246,8 @@ To do that, open up the command palette (Ctrl + P), type in "task" and press Spa
 If you want to quickly test a change, or you're implementing features that require a lot of restarts, you can use Vite's development server to speed up the process:  
 Go to the "Run and Debug" tab of VSCode and start the "Launch Heroic (HMR & HR)" task (alternatively, if you're not using VSCode or just prefer the terminal, run `yarn dev`). Heroic will start up after a short while, and once you make any change to the code, it'll reload/restart.
 
+Note: If you do not need the React developer tools while testing changes, you can skip their install by setting the `HEROIC_NO_REACT_DEVTOOLS` environment variable before running `yarn dev` (for example with `HEROIC_NO_REACT_DEVTOOLS=1 yarn dev`).
+
 ### Development Using a Container
 
 <details>

src/backend/main.ts

@@ -235,15 +235,17 @@ async function createWindow(): Promise<BrowserWindow> {
   }
 
   if (!app.isPackaged) {
-    /* eslint-disable @typescript-eslint/ban-ts-comment */
-    //@ts-ignore
-    import('electron-devtools-installer').then((devtools) => {
-      const { default: installExtension, REACT_DEVELOPER_TOOLS } = devtools
+    if (!process.env.HEROIC_NO_REACT_DEVTOOLS) {
+      import('electron-devtools-installer').then((devtools) => {
+        const { default: installExtension, REACT_DEVELOPER_TOOLS } = devtools
 
-      installExtension(REACT_DEVELOPER_TOOLS).catch((err: string) => {
-        logWarning(['An error occurred: ', err], { prefix: LogPrefix.Backend })
+        installExtension(REACT_DEVELOPER_TOOLS).catch((err: string) => {
+          logWarning(['An error occurred: ', err], {
+            prefix: LogPrefix.Backend
+          })
+        })
       })
-    })
+    }
     mainWindow.loadURL('http://localhost:5173')
     // Open the DevTools.
     mainWindow.webContents.openDevTools()
@@ -779,7 +781,7 @@ ipcMain.handle(
     }
 
     try {
-      // @ts-ignore This is actually fine as long as the frontend always passes the right InstallPlatform for the right runner
+      // @ts-expect-error This is actually fine as long as the frontend always passes the right InstallPlatform for the right runner
       const info = await getGame(game, runner).getInstallInfo(installPlatform)
       return info
     } catch (error) {