v0.22.0

• Feature: Add support for GraphQL (@ferronrsmith)
• Feature: Add new system variable - local machine environment variable (@mtnrbq)
• Improvement: Reduce the extension size by excluding unnecessary images (@badre429)
• Improvement: Reduce the extension size by excluding node_modules directory
• Improvement: Replace spinner with octicon animation
• Improvement: Upgrade httpsnippet package to support new languages and frameworks, e.g., PowerShell, Fetch API
• Bug Fix: Do not swallow last character in datetime format string
• Bug Fix: Allow request body file path contains whitespaces
• Bug Fix: Support extract JSON body with pure string payload with $