[BUG] Tailwind JIT Compiler don't rebuild stylesheet

[verbose9]

Bug Report Quick Checklist

• [x] I am on the latest version of Snowpack & all plugins.
• [x] I use package manager yarn
• [x] I run Snowpack on OS Windows
• [x] I run Snowpack on Node.js v14 LTS

Describe the bug

TailwindCSS JIT Compiler doesn't pick up changes.

To Reproduce

1. Clone: https://github.com/verbose9/tlwind

2. Install dependencies and spin up dev server:

   
   npm i

npm run dev

3. Try changing tailwindcss classes(try adding `text-red-500` class) in index.html file line 12.
4. You will see a change for removing classes but no change in adding classes.

### Expected behavior

Dev Server should reflect the class changes.

[FredKSchott]

@lukejacksonn this could be a good one to look at to get you started

[verbose9]

@lukejacksonn this could be a good one to look at to get you started

are saying this in context of this issue?

[drwpow]

I believe this has been fixed in #3326, and will be available in the v3.5.0 release. Please see the updated docs to enable this new setting. Please give it a try and let me know if it fixes your problem!