🪲 [Fix]: FileList in manifest (#59)

## Description

- Fixed an issue where the file list would not get populated in the
module manifest.

## Type of change

<!-- Use the check-boxes [x] on the options that are relevant. -->

- [ ] 📖 [Docs]
- [x] 🪲 [Fix]
- [ ] 🩹 [Patch]
- [ ] ⚠️ [Security fix]
- [ ] 🚀 [Feature]
- [ ] 🌟 [Breaking change]

## Checklist

<!-- Use the check-boxes [x] on the options that are relevant. -->

- [x] I have performed a self-review of my own code
- [x] I have commented my code, particularly in hard-to-understand areas

Author: MariusStorhaug

scripts/helpers/Build/Build-PSModuleManifest.ps1

@@ -104,7 +104,7 @@ function Build-PSModuleManifest {
 
         # Get the relative file path and store it in the manifest
         $files = $files | Select-Object -ExpandProperty FullName | ForEach-Object { $_.Replace($ModuleOutputFolder, '').TrimStart($pathSeparator) }
-        $manifest.FileList = $fileList.count -eq 0 ? @() : @($fileList)
+        $manifest.FileList = $files.count -eq 0 ? @() : @($files)
         $manifest.FileList | ForEach-Object { Write-Verbose "[FileList] - [$_]" }
 
         Write-Verbose '[RequiredAssemblies]'