Fix new lint violations after rebase (#3130)

This fixes a couple of minor issues after rebasing the `eslint-9`
branch.

Author: Mrtenz

eslint.config.mjs

@@ -8,6 +8,7 @@ const config = createConfig([
   {
     ignores: [
       '**/assembly',
+      '**/build',
       '**/coverage',
       '**/dist',
       '**/docs',
@@ -29,7 +30,7 @@ const config = createConfig([
     },
 
     settings: {
-      'import-x/extensions': ['.js', '.mjs'],
+      'import-x/extensions': ['.js', '.mjs', '.wasm'],
     },
 
     rules: {
@@ -350,6 +351,16 @@ const config = createConfig([
       'import-x/no-unresolved': 'off',
     },
   },
+
+  // Wasm example
+  {
+    files: ['packages/examples/packages/wasm/src/index.ts'],
+
+    rules: {
+      // This rule changes depending on whether the build files exist or not.
+      'import-x/extensions': 'off',
+    },
+  },
 ]);
 
 export default config;

packages/examples/packages/wasm/src/index.ts

@@ -9,7 +9,6 @@ import type { instantiate } from '../build/program';
 
 // This is the WASM module, generated by AssemblyScript, inlined as an object
 // containing the functions exported by the WASM module.
-// eslint-disable-next-line import-x/extensions
 import * as program from '../build/program.wasm';
 
 /**

packages/snaps-controllers/src/services/webview/WebViewMessageStream.ts

@@ -23,7 +23,7 @@ export class WebViewMessageStream extends BasePostMessageStream {
 
   readonly #target;
 
-  #webView: WebViewInterface | undefined;
+  readonly #webView: WebViewInterface | undefined;
 
   /**
    * Creates a stream for communicating with other streams inside a WebView.

packages/snaps-simulation/src/helpers.ts

@@ -270,6 +270,8 @@ export function getHelpers({
     });
   };
 
+  // This can't be async because it returns a `SnapRequest`.
+  // eslint-disable-next-line @typescript-eslint/promise-function-async
   const onKeyringRequest = (request: KeyringOptions) => {
     log('Sending keyring request %o.', request);