Update FileWatcher.ts

[CWade3051]

This fixes the issue in windows that causes "Unexpected JSON character errors" causing extension to not load at all

[ColinMcNeil]

Love the change, good catch. I think we already have a method to do this, but it wasn't used here.

[ColinMcNeil]

Hi, we will be implementing windows support fully soon. Stay tuned in the coming weeks!

[billyboyballin]

Hey @ColinMcNeil can you get this fix in. I'm using docker desktop and this extension and I can't use any tool because of the json issue. I get the following notification in my docker desktop when trying to turn on a tool

Error while executing '"C:\Program Files\Docker\Docker\resources\bin\docker.exe" run --label com.docker.desktop.extension="true" --label com.docker.compose.project=docker_labs-ai-tools-for-devs-desktop-extension --label com.docker.compose.project.config_files= --label com.docker.compose.config-hash= --rm -v docker-prompts:/docker-prompts --workdir /docker-prompts vonwig/function_write_files:latest "{ \"files\": [ { \"path\": \"registry.yaml\", \"content\": \"registry:\n curl:\n ref: github:docker/labs-ai-tools-for-devs?ref=main&path=prompts/examples/curl.md\n\" } ] }"': unquoted newlines are not allowed when executing commands through SDK APIs