[Feature Request]: Set as global the Flutter version in .fvmrc file

[yannatk]

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Is your feature request related to a problem? Please describe.
As a developer using fvm with VSCode,
I want to fix an issue where the VSCode launch configuration fails when using an old global Flutter version while the project is set to the latest version with fvm,
So that I can ensure consistent behavior between command-line and VSCode environments when running Flutter applications

Describe the solution you'd like
Implement a feature or workaround to ensure that VSCode correctly respects the Flutter version specified in the .fvmrc, even when an old global version is set.

Additional context
Reproduction Steps

• Set a very old Flutter version (e.g., version 2.x or below) as the global FVM Flutter version.
• Set the Flutter version for the project to the latest version using .fvmrc file.
• Attempt to run the app using the VSCode launch configuration.
• Observe that the app fails to run.
• Attempt to run the app using the fvm command line and verify that it works correctly.