chore(android): bump version to 0.1.1 (versionCode 5)

Play rejects duplicate versionCodes. Still an internal-track build, so
0.1.1 rather than 1.0.0.

Nothing in the app itself changed since v0.1.0 -- the release carries
the toolchain migration from pnpm to npm plus the plans and publishing
docs consolidation.

android/android/app/build.gradle

@@ -7,8 +7,8 @@ android {
         applicationId "com.miti99.loto"
         minSdkVersion rootProject.ext.minSdkVersion
         targetSdkVersion rootProject.ext.targetSdkVersion
-        versionCode 4
-        versionName "0.1.0"
+        versionCode 5
+        versionName "0.1.1"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         aaptOptions {
              // Files and dirs to omit from the packaged assets dir, modified to accommodate modern web apps.