Fix a couple more issues in android-gen.c; bump version

In particular I suspect the uninitialised struct frontend had a non-zero env
that we tried to call into on the Pre Launch Report devices. Why this never
happens on the devices/emulators in front of me is a mystery.

app/build.gradle

@@ -43,7 +43,7 @@ android {
         targetSdkVersion 32
         minSdkVersion 19
         applicationId "name.boyle.chris.sgtpuzzles"
-        versionCode 132
+        versionCode 133
         versionName timestamp(false)
         testInstrumentationRunner 'androidx.test.runner.AndroidJUnitRunner'
         resValue "string", "issues_url", issuesURL()

app/src/main/jni/executable/android-gen.c

@@ -14,7 +14,7 @@ void serialise_write(__attribute__((unused)) void *ctx, const void *buf, int len
 const struct drawing_api null_drawing = {
 	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
-	NULL,
+	NULL, NULL, NULL, NULL, NULL, NULL,
 };
 
 int main(int argc, const char *argv[]) {
@@ -42,6 +42,7 @@ int main(int argc, const char *argv[]) {
 	}
 
 	frontend *fe = snew(frontend);
+	memset(fe, 0, sizeof(frontend));
 	fe->me = midend_new(fe, thegame, &null_drawing, fe);
 
 	const char* error = NULL;