chore: Universal Linking for Android (#2324)

* android assetlinks.json config

* try renaming html to json

* update env example

* chore: fix styling

* chore: styling part 2

* test: add spec for android assetlinks

* minor fixes

* minor fixes

* remove android sha256 value from env example

* add default sh256 value

Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>
Co-authored-by: Sojan Jose <sojan@pepalo.com>

spec/controllers/android_assetlinks_spec.rb

@@ -0,0 +1,10 @@
+require 'rails_helper'
+
+describe '.well-known/assetlinks.json', type: :request do
+  describe 'GET /.well-known/assetlinks.json' do
+    it 'successfully retrieves assetlinks.json file' do
+      get '/.well-known/assetlinks.json'
+      expect(response).to have_http_status(:success)
+    end
+  end
+end