🩹 [Patch]: Refactor Get-GitHubAppByName function for improved context…

… handling and logging (#202)

## Description

- Refactor Get-GitHubAppByName function for improved context handling
and logging

## 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

src/functions/private/Apps/Get-GitHubAppByName.ps1

@@ -30,15 +30,25 @@
         [object] $Context = (Get-GitHubContext)
     )
 
-    $Context = Resolve-GitHubContext -Context $Context
-
-    $inputObject = @{
-        Context     = $Context
-        APIEndpoint = "/apps/$AppSlug"
-        Method      = 'GET'
+    begin {
+        $commandName = $MyInvocation.MyCommand.Name
+        Write-Verbose "[$commandName] - Start"
+        $Context = Resolve-GitHubContext -Context $Context
+        Assert-GitHubContext -Context $Context -AuthType IAT, PAT, UAT
     }
 
-    Invoke-GitHubAPI @inputObject | ForEach-Object {
-        Write-Output $_.Response
+    process {
+        $inputObject = @{
+            Context     = $Context
+            APIEndpoint = "/apps/$AppSlug"
+            Method      = 'GET'
+        }
+
+        Invoke-GitHubAPI @inputObject | ForEach-Object {
+            Write-Output $_.Response
+        }
+    }
+    end {
+        Write-Verbose "[$commandName] - End"
     }
 }