Update gui-apps.md to simplify commits.

[polymo1]

I figured, if we are already referencing use of APT, and using it too, why use DPKG directly?

I simply changed the command to use APT to install google chrome, and its dependencies, rather than using 3 separate steps just for installing.

[learn-build-service-prod[bot]]

Learn Build status updates of commit 33f0157:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
WSL/tutorials/gui-apps.md	:white_check_mark:Succeeded	View

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel

[mattwojo]

Thanks @WesleyBryie !

[learn-build-service-prod[bot]]

Learn Build status updates of commit 1e76a7a:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
WSL/tutorials/gui-apps.md	:white_check_mark:Succeeded	View

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel

[polymo1]

Thanks @WesleyBryie !

Anytime!