🪲 [Fix]: Verify that folders exist (#60)

## Description

- Verify that folders exist

## 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. -->

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

Author: MariusStorhaug

scripts/helpers/Build/Get-PSModuleFunctionsToExport.ps1

@@ -23,6 +23,10 @@
     Write-Verbose "[$manifestPropertyName] - Checking path for functions and filters"
 
     $publicFolderPath = Join-Path -Path $SourceFolderPath -ChildPath 'functions/public'
+    if (-not (Test-Path -Path $publicFolderPath -PathType Container)) {
+        Write-Verbose "[$manifestPropertyName] - [Folder not found] - [$publicFolderPath]"
+        return $functionsToExport
+    }
     Write-Verbose "[$manifestPropertyName] - [$publicFolderPath]"
     $functionsToExport = [Collections.Generic.List[string]]::new()
     $scriptFiles = Get-ChildItem -Path $publicFolderPath -Recurse -File -ErrorAction SilentlyContinue -Include '*.ps1'

scripts/helpers/Build/Get-PSModuleVariablesToExport.ps1

@@ -22,6 +22,10 @@
     Write-Verbose "[$manifestPropertyName]"
 
     $variableFolderPath = Join-Path -Path $SourceFolderPath -ChildPath 'variables/public'
+    if (-not (Test-Path -Path $variableFolderPath -PathType Container)) {
+        Write-Verbose "[$manifestPropertyName] - [Folder not found] - [$variableFolderPath]"
+        return $variablesToExport
+    }
     $scriptFilePaths = Get-ChildItem -Path $variableFolderPath -Recurse -File -Filter *.ps1 | Select-Object -ExpandProperty FullName
 
     $variablesToExport = [Collections.Generic.List[string]]::new()