Redux/tests

[ishpaul777]

This PR adds test coverage for the redux actions in our application. The tests include:

• Unit tests for each action to ensure they are dispatching the correct type and payload
• changes in update actions for issue explained below

 current entity = {
	...
	description: {
	json: { }
	html: ..
  }
	...
  }

entity.description = { json: entity.description, html: entity.description_html };=
//  after above it becomes
entity = {
	...
	description: {
	json: {
		json: { }
		html: ...
	}
	html: ..
  }
  ...
  }

Please take a look and let me know if there's anything that needs to be changed or if you have any questions.

[surajmn1]

@ishpaul777 please fix the test case for root reducer , only include the studio/src directory files and remove all files which do not have any changes related to the test cases .

[ishpaul777]

@surajmn1 will do it!

[surajmn1]

closing this pr and opening a fresh one with merge conflicts fixed #903 .