feat: use material icons

app/build.gradle.kts

@@ -23,7 +23,16 @@ android {
 
     buildTypes {
         release {
-            isMinifyEnabled = false
+            // R8 code shrinking + resource shrinking. Critical with
+            // material-icons-extended: it bundles thousands of vector icons, and
+            // R8 strips everything we don't reference (debug builds can't shrink,
+            // so the debug APK stays large — that's expected).
+            isMinifyEnabled = true
+            isShrinkResources = true
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules.pro",
+            )
         }
     }
 
@@ -106,6 +115,7 @@ dependencies {
     implementation(libs.androidx.ui.graphics)
     implementation(libs.androidx.ui.tooling.preview)
     implementation(libs.androidx.material3)
+    implementation(libs.androidx.material.icons.extended)
     debugImplementation(libs.androidx.ui.tooling)
 
     testImplementation(libs.junit)