Untabbed Chrome

Adding basic build instructions in case it isn't obvious.

Build instructions

1. Go to src/lib/ai.ts, replace the api_key with your own (the key shown is a restricted key and won't work for you).
2. From the root npm i, npm run build. This will produce a dist folder which we will use in the next steps.
3. You can then go to Extensions -> ** Manage Extensions** in your Chrome browser.
4. Make sure Developer Mode is toggled on.
5. Then proceed to Load Unpacked,specify the location of the dist folder what was created in step 2.
6. Untabbed will be loaded!