feat: Do not install dev packages everytime in the env

[niraj2477]

Description

• When using fm code command, it installs dev packages in env every time, weather they are installed already or not. Due to which we can not start vscode while being offline.

Use Case

• This can reduce the time taken for starting the vscode.

Expected Behavior
[Describe the expected behavior or outcome if this feature were implemented.]

Current Behavior (if applicable)
[Explain the current behavior or limitations of the project related to this feature request, if applicable.]

Possible Solution
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Additional Context
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Related Issues/Pull Requests
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