fix: split webMain ClipEntry actual into jsMain/wasmJsMain + install Android SDK on Linux ARM64 release

- ClipEntry.withPlainText lives in Compose's per-target klibs (PlatformClipboard.{js,wasm}.kt),
  so the commonized webMain metadata compile can't resolve it. Split the actual into
  separate jsMain and wasmJsMain files so the symbol is only needed at platform compile time.
- release-graalvm.yaml Linux ARM64 job was using android-actions/setup-android@v3 with the
  default 'tools' package, which has no ARM64 build. Pin to 'platforms;android-36' to match
  build-natives.yaml.

Author: kdroidFilter

.github/workflows/release-graalvm.yaml

@@ -72,6 +72,8 @@ jobs:
       - name: Setup Android SDK (Linux ARM64)
         if: matrix.os == 'ubuntu-24.04-arm'
         uses: android-actions/setup-android@v3
+        with:
+          packages: 'platforms;android-36'
 
       - name: Setup Gradle
         uses: gradle/actions/setup-gradle@v5

pdfium/src/jsMain/kotlin/dev/nucleusframework/pdfium/ClipEntryText.js.kt

@@ -0,0 +1,6 @@
+package dev.nucleusframework.pdfium
+
+import androidx.compose.ui.platform.ClipEntry
+
+actual fun textClipEntry(text: String): ClipEntry =
+    ClipEntry.withPlainText(text)

pdfium/src/wasmJsMain/kotlin/dev/nucleusframework/pdfium/ClipEntryText.wasmJs.kt

@@ -0,0 +1,6 @@
+package dev.nucleusframework.pdfium
+
+import androidx.compose.ui.platform.ClipEntry
+
+actual fun textClipEntry(text: String): ClipEntry =
+    ClipEntry.withPlainText(text)