(maint) Fix chocolatey package install script

There were a couple of typos for parameters, and also switch to Join-Path to build
the path to the module zip archive

Author: steviecoaster

src/nuget/NexuShell.nuspec

@@ -10,7 +10,7 @@
     <authors>Stephen Valdinger</authors>
     <projectUrl>https://github.com/steviecoaster/NexuShell</projectUrl>
     <projectSourceUrl>https://github.com/steviecoaster/NexuShell</projectSourceUrl>
-    <iconUrl></iconUrl>
+    <iconUrl>https://cdn.jsdelivr.net/gh/steviecoaster/NexuShell@develop/logo/nexushell.svg</iconUrl>
     <copyright>(c) 2021 steviecoaster. All rights reserved.</copyright>
     <docsUrl>https://steviecoaster.dev/NexuShell/</docsUrl>
     <bugTrackerUrl>https://github.com/steviecoaster/NexuShell/issues</bugTrackerUrl>

src/nuget/tools/chocolateyInstall.ps1

@@ -17,7 +17,7 @@ if (Test-Path -Path $savedParamsPath) {
     Remove-Item -Path $savedParamsPath -Force
 }
 
-$sourcePath = Convert-Path $toolsDir\$ModuleName.*.zip
+$sourcePath = Join-Path $toolsDir -ChildPath "$($ModuleName).zip"
 $destinationPath = @()
 
 $PathSegment = @{
@@ -30,14 +30,14 @@ $PathSegment = @{
 
 $Parameters = Get-PackageParameters
 
-if (-not $Parameters.ContainsKey('Windows') -and -not $Parameter.ContainsKey('Core')) {
+if (-not $Parameters.ContainsKey('Windows') -and -not $Parameters.ContainsKey('Core')) {
     $Parameters += @{
         Windows = $PSVersionTable.PSVersion.Major -le 5
         Core    = $PSVersionTable.PSVersion.Major -gt 5
     }
 }
 
-if (-not $Parameters.ContainsKey('AllUsers') -and -not $Parameter.ContainsKey('CurrentUser')) {
+if (-not $Parameters.ContainsKey('AllUsers') -and -not $Parameters.ContainsKey('CurrentUser')) {
     $Parameters += @{
         AllUsers    = Test-ProcessAdminRights
         CurrentUser = -not (Test-ProcessAdminRights)