This PR introduces a feature to disable some of the MCP server tool
categories to tailor it to specific use cases.
For example,
```
npx chrome-devtools-mcp@latest --no-category-emulation Disable tools in the emulation category
npx chrome-devtools-mcp@latest --no-category-performance Disable tools in the performance category
npx chrome-devtools-mcp@latest --no-category-network Disable tools in the network category
```
* add script `npm run docs` that builds, generate docs and runs
formatter to auto fix formatting after doc generation
* rename generate-docs to docs:generate
* update presubmit workflow
* add docs process to contributing.md