fix: CSS dependencies are tracked incorrectly when base is set

The change in vitejs#4267 caused all CSS
dependencies of files that are not CSS (Tailwind CSS JIT deps) to be
tracked with the `base` prefix in the module graph.

URLs in the module graph are normalized and are never prefixed with base
and as a result changes to those files were not causing the CSS module
to be invalidated.

See tailwindlabs/tailwindcss#4978 (comment)

packages/vite/src/node/plugins/css.ts

@@ -208,7 +208,9 @@ export function cssPlugin(config: ResolvedConfig): Plugin {
                 isCSSRequest(file)
                   ? moduleGraph.createFileOnlyEntry(file)
                   : await moduleGraph.ensureEntryFromUrl(
-                      await fileToUrl(file, config, this)
+                      (
+                        await fileToUrl(file, config, this)
+                      ).replace(config.base, '/')
                     )
               )
             }