add back necessary R8 rules

thestinger · thestinger · commit 529caf78cd2b · 2025-03-03T14:42:36.000-05:00
These were unintentionally removed while removing the sample rules
across our repositories.
diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
@@ -0,0 +1 @@
+-keep,allowoptimization class app.grapheneos.apps.**

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
	`1`	`+-keep,allowoptimization class app.grapheneos.apps.**`