Created initial assets

scripts/shell-integration/integration.ps1

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+Set-PSReadLineKeyHandler -Chord "alt+e" -ScriptBlock {
+    $_old = $null
+    [Microsoft.PowerShell.PSConsoleReadline]::GetBufferState([ref]$_old, [ref]$null)
+    if ($_old) {
+        [Microsoft.PowerShell.PSConsoleReadLine]::Insert('⌛')
+        $_new = (loki -e $_old)
+        [Microsoft.PowerShell.PSConsoleReadLine]::DeleteLine()
+        [Microsoft.PowerShell.PSConsoleReadline]::Insert($_new)
+    }
+}