Use VSCode Code CLI instead of VSCode code-server to run VSCode Web

[Ricky-Hao]

Hi,
The current VSCode Web module directly uses code-server to start a VSCode Web instance.
However, I noticed that the current VSCode Web only stores user credentials (e.g., GitHub authentication) in in-memory storage.

After investigating the VSCode source code, I discovered that VSCode Web requires a key from the /mint-key endpoint.
In Coder's code-server, the /mint-key endpoint is implemented.
However, in the official VSCode version, the /mint-key functionality is only available in the VSCode CLI (code binary).

To enable credential persistence, we need to use code serve-web to start a VSCode Web instance instead of the current code-server serve-local.

In this PR, I updated the process to use code serve-web to start a VSCode Web instance.
Most of the features from the old code-server are supported, except for the following two:

• OFFLINE
• USE_CACHE

I did not remove these variables from the .tf files to maintain compatibility.

[bcpeinhardt]

@matifali this would be a good opportunity to use the new individual version tag structure when releasing.

[matifali]

Yes if this. lands, it should be go as 2.0.0 for vscode-web. @bcpeinhardt can you take care of this?