Package with node_modules.asar

[code-asher]

Currently we patch require to use node_modules but this breaks if an extension explicitly tries to look in node_modules.asar like the bracket pair colorizer plugin:

Activating extension 'CoenraadS.bracket-pair-colorizer-2' failed: ENOENT: no such file or directory, open '/usr/lib/code-server/lib/vscode/node_modules.asar/vscode-oniguruma/release/onig.wasm'. _logMessageInConsole @ abstractExtensionService.ts:416

We should package code-server with that directory.

[code-asher]

Maybe we should just symlink node_modules.asar to node_modules.