Introduce JavascriptAddon

Bug: 375326606
Test: long press to select && ^C
Change-Id: If292e92b4e0c8d3626b8357d81becea39906ef7c
diff --git a/android/TerminalApp/Android.bp b/android/TerminalApp/Android.bp
index 733a72b..4bb9703 100644
--- a/android/TerminalApp/Android.bp
+++ b/android/TerminalApp/Android.bp
@@ -8,6 +8,7 @@
         "java/**/*.java",
         "java/**/*.kt",
     ],
+    asset_dirs: ["assets"],
     resource_dirs: ["res"],
     static_libs: [
         "androidx-constraintlayout_constraintlayout",