Show UI warning to user when they need provider data but have not setup Synth yet (#1926)

* Simplify provider concerns

* Update tests

* Add UI warning for missing Synth key if family requires external data

test/models/security/price_test.rb

@@ -5,14 +5,16 @@ class Security::PriceTest < ActiveSupport::TestCase
   setup do
     @provider = mock
 
-    Security::Price.stubs(:security_prices_provider).returns(@provider)
+    Security::Price.stubs(:provider).returns(@provider)
   end
 
   test "security price provider nil if no api key provided" do
-    Security::Price.unstub(:security_prices_provider)
+    Security::Price.unstub(:provider)
+
+    Setting.stubs(:synth_api_key).returns(nil)
 
     with_env_overrides SYNTH_API_KEY: nil do
-      assert_not Security::Price.security_prices_provider
+      assert_not Security::Price.provider
     end
   end
 
@@ -60,7 +62,10 @@ class Security::PriceTest < ActiveSupport::TestCase
   end
 
   test "returns nil if price not found in DB and provider disabled" do
-    Security::Price.unstub(:security_prices_provider)
+    Security::Price.unstub(:provider)
+
+    Setting.stubs(:synth_api_key).returns(nil)
+
     security = Security.new(ticker: "NVDA")
 
     with_env_overrides SYNTH_API_KEY: nil do
@@ -105,7 +110,9 @@ class Security::PriceTest < ActiveSupport::TestCase
   end
 
   test "returns empty array if no prices found in DB or from provider" do
-    Security::Price.unstub(:security_prices_provider)
+    Security::Price.unstub(:provider)
+
+    Setting.stubs(:synth_api_key).returns(nil)
 
     with_env_overrides SYNTH_API_KEY: nil do
       assert_equal [], Security::Price.find_prices(security: Security.new(ticker: "NVDA"), start_date: 10.days.ago.to_date, end_date: Date.current)