Check if running in iTerm2 and throw if not

Author: daxian-dbw

shell/AIShell.Integration/AIShell.psm1

@@ -1,3 +1,7 @@
+if ($IsMacOS -and $env:TERM_PROGRAM -ne "iTerm.app") {
+    throw "The AIShell module requires iTerm2 to work properly. Please install and run from the iTerm2 terminal."
+}
+
 $module = Get-Module -Name PSReadLine
 if ($null -eq $module -or $module.Version -lt [version]"2.4.2") {
     throw "The PSReadLine v2.4.2-beta2 or higher is required for the AIShell module to work properly."