🔧 chore(app, flowlayout/layouts): update icons, keystore handling, and ProGuard rules

flowlayout/layouts/build.gradle

@@ -2,14 +2,14 @@ apply plugin: 'com.android.library'
 
 android {
     namespace "org.apmem.tools.layouts"
-    compileSdkVersion 29
+    compileSdkVersion 34
     buildToolsVersion "34.0.0"
 
     defaultConfig {
         versionCode 2
         versionName "0.2"
-        minSdkVersion 14
-        targetSdkVersion 29
+        minSdkVersion 21
+        targetSdkVersion 34
     }
     buildTypes {
         release {

flowlayout/layouts/proguard-rules.pro

@@ -0,0 +1,24 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
+
+# Keep all public classes and methods in the layouts library
+-keep public class org.apmem.tools.layouts.** { *; }