Extension causes high cpu load

[MuhammadHamzaAmir]

• Issue Type: Performance
• Extension Name: vscode-css-peek
• Extension Version: 4.0.2
• OS Version: Windows_NT x64 10.0.19042
• VSCode version: 1.52.1

:warning: Make sure to attach this file from your home-directory: :warning:c:\Users\HAMZA-~1\AppData\Local\Temp\pranaygp.vscode-css-peek-unresponsive.cpuprofile.txt

Find more details here: https://github.com/microsoft/vscode/wiki/Explain-extension-causes-high-cpu-l pranaygp.vscode-css-peek-unresponsive.cpuprofile.txt oad

[pranaygp]

Duplicate of #41