Fix error message to say 'copy path' instead of 'copy folders'

Author: bcomnes

lib/build-copy/index.js

@@ -60,7 +60,7 @@ export async function buildCopy (_src, dest, _siteData, opts) {
     // @ts-expect-error
     const copyGlob = copyGlobs[index]
     if (result.status === 'rejected') {
-      const buildError = new Error('Error copying copy folders', { cause: result.reason })
+      const buildError = new Error(`Error copying copy path: ${copyGlob}`, { cause: result.reason })
       results.errors.push(buildError)
     } else {
       results.report[copyGlob] = result.value