chore: rewrite file watcher

[yurks]

Currently, file watcher asynchronously retrieves documents and schemas on each project file changes, which is slow, and caused unreasonably high resources usage.

Changes made

• resolve all configured documents and schemas only once on server startup and simply check file path matching in watcher.
• fix cases when schema path defined with dot like ./src/schema.graphql by resolve absolute schema paths.
• fix cases when documents defined with glob pattern like ./src/**/*.graphql, and modifying src/path/api.graphql.generated.ts file caused false positive check and trigger watcher for that file.

Also, this PR should resolve OOM issues reported in https://github.com/danielwaltz/vite-plugin-graphql-codegen/issues/27

Side changes

• reduce amount of log records, as currently it contains a lot of records which is not related to plugin: modifying any file in project produces ~5 log entries. Below are screenshots of the same number of interactions with project files demonstrating this.

Before

After

[danielwaltz]

Thanks for your effort on these PRs! Hope to carve out the time in the next week or so to test them out and get them merged. 🎉

[danielwaltz]

Thanks again for the work on this! I have implemented this strategy in a slightly different way that still supports the use cased of adding files. Please let me know if you run into any issues in the latest version!