Scope globally declared variables to root describe

[ManuGowda]

Description

Move globally declared variables and functions to root describe

Defining variables globally

const testData = {};
describe('fee', () => {
  describe('nested', () => {
    it.todo('should assert something');
  });
});

scoped to root describe

describe('fee', () => {
  const testData = {};
  describe('nested', () => {
    it.todo('should assert something');
  });
});

Motivation

• To be compliance with Lisk coding standards

Acceptance Criteria

• Move all globally declared variables root describe
• Nested function functions specific to a particular function shouldn't be scoped outside