android build: Switch back to "all" distribution of Gradle.

We switched incidentally from "bin" to "all" when upgrading from 4.6.
Android Studio then pops up a banner recommending to switch to a
distribution "with sources", so that the IDE can provide
documentation; that turns out to mean "all".

New command for updating the config:

  ./gradlew wrapper --gradle-version=4.10.3 --distribution-type=all

Author: gnprice

android/gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.3-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.3-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists