chore: Clean up Android codebase a bit (#1748)

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## What

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## Changes

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## Tested on

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    * Huawai P20, Android 10
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.github/workflows/validate-android.yml

@@ -6,13 +6,13 @@ on:
       - main
     paths:
       - '.github/workflows/validate-android.yml'
-      - 'android/**'
-      - '.editorconfig'
+      - 'package/android/**'
+      - 'package/.editorconfig'
   pull_request:
     paths:
       - '.github/workflows/validate-android.yml'
-      - 'android/**'
-      - '.editorconfig'
+      - 'package/android/**'
+      - 'package/.editorconfig'
 
 jobs:
   lint: