[vscode][plugin] some plugin get vscode Module but not found

[502647092]

Description

code from ext formulahendry.vscode-mysql

Global.keytar = getCoreNodeModule(`keytar`);
exports.Global = Global;
/**
 * Returns a node module installed with VSCode, or null if it fails.
 */
function getCoreNodeModule(moduleName) {
    console.log(vscode.env.appRoot)
    try {
        return require(`${vscode.env.appRoot}/node_modules.asar/${moduleName}`);
    }
    catch (err) { }
    try {
        return require(`${vscode.env.appRoot}/node_modules/${moduleName}`);
    }
    catch (err) { }
    return null;
}

it cause plugin can't use
how to fix this problem

Reproduction Steps

OS and Theia version:
Diagnostics:

[akosyakov]

It looks the same as #4935 (comment)

[akosyakov]

If we do #4935 (comment) then you should be able to add required modules as dependencies to your app to install them under ${vscode.env.appRoot}/node_modules.