chore: updating package.json and contraints.prop config to allow for css (#609)

Author: georgewrmarshall

constraints.pro

@@ -81,7 +81,7 @@ gen_enforced_field(WorkspaceCwd, 'exports["./package.json"]', './package.json').
 
 % The list of files included in the package must only include files generated
 % during the build step.
-gen_enforced_field(WorkspaceCwd, 'files', ['dist']).
+gen_enforced_field(WorkspaceCwd, 'files', ['dist', 'src/css/']).
 
 % If a dependency is listed under "dependencies", it should not be listed under
 % "devDependencies".

package.json

@@ -27,7 +27,8 @@
   "module": "./dist/index.mjs",
   "types": "./dist/types/index.d.ts",
   "files": [
-    "dist"
+    "dist",
+    "src/css/"
   ],
   "scripts": {
     "build": "tsup --clean && yarn build:types",