LF-4479: [GET&POST] Update Task saga to account for new animal movement task

[SayakaOno]

Description

• Add animalMovementTaskSlice.
• Update taskSlice to include animals and animal_batches in tasks.
• Update taskSlice, onLoadingTaskStartSaga and getTasksSuccessSaga for GET requests.
  • The translation key is MOVEMENT_TASK, but the subtask name in the GET response body is animal_movement_task, whereas they match for other task types. To handle this, I created a getSubtaskName function. I should've been more careful with naming...
    
• Update createTaskSaga for POST requests.
  • I created a sagaUtils file and added helper functions there.

Additionally, this is not directly related to the ticket, but I updated flattenInternalIdentifier to remove the animal_union_batch property from animals and batches, which I forgot to address when working on the API.

I’ll create another PR for PATCH requests later this week.

Jira link: https://lite-farm.atlassian.net/browse/LF-4479

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

• Passes test case
• UI components visually reviewed on desktop view
• UI components visually reviewed on mobile view
• Other (please explain)

Checklist:

• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• The precommit and linting ran successfully
• I have added or updated language tags for text that's part of the UI
• I have added "MISSING" for all new language tags to languages I don't speak
• I have added the GNU General Public License to all new files

[Duncan-Brain]

Seems to be working for me! You are crushing it Sayaka! 🎉

[antsgar]

Looks good, great job!! 👏