VSCode IDE enhancement and readme update (#3172)

- Temporarily disable the deque test for the VS Code extension, as the
  Rust formatter seems to malfunction after a recent VS Code update.
- Add configuration for iwasm host managed heap size, allowing users
  to flexibly `malloc` memory. This also fixes the current bug that when
  default size is 0, it can't run and debug.
- Apply coding style formatting for WAMR IDE source code and add a
  format check for it in CI.
- Update document and some screenshots.

test-tools/wamr-ide/VSCode-Extension/src/test/runTest.ts

@@ -9,25 +9,25 @@ import * as os from 'os';
 import { runTests } from '@vscode/test-electron';
 
 async function main() {
-	try {
-		// The folder containing the Extension Manifest package.json
-		// Passed to `--extensionDevelopmentPath`
-		const extensionDevelopmentPath = path.resolve(__dirname, '../../');
+    try {
+        // The folder containing the Extension Manifest package.json
+        // Passed to `--extensionDevelopmentPath`
+        const extensionDevelopmentPath = path.resolve(__dirname, '../../');
 
-		// The path to the extension test script
-		// Passed to --extensionTestsPath
-		const extensionTestsPath = path.resolve(__dirname, './suite/index');
+        // The path to the extension test script
+        // Passed to --extensionTestsPath
+        const extensionTestsPath = path.resolve(__dirname, './suite/index');
 
-		// Download VS Code, unzip it and run the integration test
-		await runTests({ 
-			extensionDevelopmentPath, 
-			extensionTestsPath,
-			launchArgs: ['--user-data-dir', `${os.tmpdir()}`]
-		});
-	} catch (err) {
-		console.error('Failed to run tests');
-		process.exit(1);
-	}
+        // Download VS Code, unzip it and run the integration test
+        await runTests({
+            extensionDevelopmentPath,
+            extensionTestsPath,
+            launchArgs: ['--user-data-dir', `${os.tmpdir()}`],
+        });
+    } catch (err) {
+        console.error('Failed to run tests');
+        process.exit(1);
+    }
 }
 
 main();