🩹 [Patch]: Simplify source code structure (#7)

## Description

- Simplify source code structure

## Type of change

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

- [ ] 📖 [Docs]
- [ ] 🪲 [Fix]
- [x] 🩹 [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

.github/linters/.powershell-psscriptanalyzer.psd1

@@ -0,0 +1,17 @@
+#Documentation: https://github.com/PowerShell/PSScriptAnalyzer/blob/master/docs/Cmdlets/Invoke-ScriptAnalyzer.md#-settings
+@{
+    #CustomRulePath='path\to\CustomRuleModule.psm1'
+    #RecurseCustomRulePath='path\of\customrules'
+    #Severity = @(
+    #    'Error'
+    #    'Warning'
+    #)
+    #IncludeDefaultRules=${true}
+    ExcludeRules = @(
+        'PSMissingModuleManifestField'
+    )
+    #IncludeRules = @(
+    #    'PSAvoidUsingWriteHost',
+    #    'MyCustomRuleName'
+    #)
+}