Simplify UX for creating allocation transactions

Purpose: User have found the current allocation modal to be confusing and counter intuitive.

User story statement(s):

As a librarian managing financial structures,
I want adjusting allocation to require as little thought as possible 
so that i can avoid making mistakes and needing to create more transactions to reverse those mistakes

Scenarios:

1. Scenario: 
   • Given user is viewing a budget
   • When clicking the actions menu
   • Then user can choose Increase allocation
2. Scenario: 
   • Given user has clicked increase allocation
   • When increase allocation modal appears
   • Then user does not need to select any Funds (Fund select is inactive)
   • AND user can simply add the desired amount, tags and description and click confirm
   • AND an allocation will be made "To" that budget for the desired amount
3. Scenario: 
   • Given user is viewing a budget
   • When clicking the actions menu
   • Then user can choose Decrease allocation
4. Scenario: 
   • Given user has licked Decrease allocation
   • When increase allocation modal appears
   • Then user does not need to select any Funds (Fund select is inactive)
   • AND user can simply add the desired amount, tags and description and click confirm
   • AND an allocation will be made "From" that budget for the desired amount
5. Scenario: 
   • Given user is viewing a budget
   • When clicking the actions menu
   • Then user can choose Move allocation
6. Scenario: 
   • Given user has licked Move allocation
   • When increase allocation modal appears
   • Then user can select 2 Funds between which they would like to move the desired amount
   • AND an allocation will be made "From" one budget "To" the next for the desired amount