Add consumer proguard rules for SQLCipher (#138)

* Add consumer proguard rules for SQLCipher

* Add changelog

* Explain why these rules are necessary

Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>

* Try to switch to a supported version of Compose Rules to avoid dependency issues

---------

Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>

libraries/encrypted-db/build.gradle.kts

@@ -20,6 +20,13 @@ plugins {
 
 android {
     namespace = "io.element.android.libraries.encrypteddb"
+
+    buildTypes {
+        release {
+            isMinifyEnabled = true
+            consumerProguardFiles("consumer-proguard-rules.pro")
+        }
+    }
 }
 
 dependencies {