feat: Add global message search (#1385)

* feat: Search messages by content

* Fix search UI

* Add specs

* chore: Filter search results

* Update highlight logic

* Rename query to searchTerm

Co-authored-by: Sojan <sojan@pepalo.com>

spec/controllers/api/v1/accounts/conversations_controller_spec.rb

@@ -85,7 +85,7 @@ RSpec.describe 'Conversations API', type: :request do
             as: :json
 
         expect(response).to have_http_status(:success)
-        response_data = JSON.parse(response.body, symbolize_names: true)[:data]
+        response_data = JSON.parse(response.body, symbolize_names: true)
         expect(response_data[:meta][:all_count]).to eq(1)
         expect(response_data[:payload].first[:messages].first[:content]).to eq 'test1'
       end