Make `wasabi` a default build type

[wzieba]

Description

As wasabi is "preferred variant for developers", it should be selected by default when opening Android Studio. AGP reference: https://developer.android.com/reference/tools/gradle-api/8.7/com/android/build/api/dsl/ApplicationProductFlavor#isDefault()

Testing

Fresh clone the project and open it in AS: wasabi should be selected as the current build variant.

[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[wpmobilebot]

📲 You can test the changes from this Pull Request in Jetpack by scanning the QR code below to install the corresponding build.

	App Name	Jetpack
	Flavor	Jalapeno
	Build Type	Debug
	Version	pr21456-3b34197
	Commit	3b341978fc6d7ee56a07a0f1516ff5ee566edd75
	Direct Download	jetpack-prototype-build-pr21456-3b34197.apk

Note: Google Login is not supported on these builds.

[wpmobilebot]

📲 You can test the changes from this Pull Request in WordPress by scanning the QR code below to install the corresponding build.

	App Name	WordPress
	Flavor	Jalapeno
	Build Type	Debug
	Version	pr21456-3b34197
	Commit	3b341978fc6d7ee56a07a0f1516ff5ee566edd75
	Direct Download	wordpress-prototype-build-pr21456-3b34197.apk

Note: Google Login is not supported on these builds.

[wzieba]

I wonder if we need to also explicitly mark the debug build type as default

It seems we don't - we haven't in the past, and when you open project, it's debug by default. I guess this is default behavior of AS, which makes sense - opening project in IDE prefers a debug variant if available.

This change triggers me again to ask another question, do we really need those product flavors,

I don't know - there probably was a reason to introduce them by product team, I'd leave the decission for them.