4002 sandboxes UI to select workflows on merge

[doc-han]

Description

This PR allows user to select the specific workflows they want to merge during a sandbox merge

Before	After

Closes #4002

Validation steps

1. Create a sandbox
2. try to merge the sandbox back into main
3. does it ask which workflows from the sandbox you want to merge in? it should
4. Now select just the workflows you want to be considered in the merge
5. After merge, confirm the changes from your selected workflows got in and those from your unselected workflows didn't get in

Additional notes for the reviewer

1. (Is there anything else the reviewer should know or look out for?)

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[codecov]

Codecov Report

❌ Patch coverage is 87.96296% with 13 lines in your changes missing coverage. Please review.
✅ Project coverage is 89.54%. Comparing base (5d4762c) to head (54e13ab).

Files with missing lines	Patch %	Lines
lib/lightning/projects/merge_projects.ex	71.87%	9 Missing ⚠️
lib/lightning_web/live/sandbox_live/index.ex	92.00%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4518      +/-   ##
==========================================
- Coverage   89.55%   89.54%   -0.01%     
==========================================
  Files         425      425              
  Lines       20307    20397      +90     
==========================================
+ Hits        18185    18265      +80     
- Misses       2122     2132      +10     

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[brandonjackson]

@doc-han could you attach a screenshot please?

[doc-han]

@doc-han could you attach a screenshot please?

@brandonjackson I've attached some visuals to the description

[brandonjackson]

Thanks! Looks great. Can you make these copy changes as well while you're working on this component? cc @theroinaochieng

[doc-han]

Thanks! Looks great. Can you make these copy changes as well while you're working on this component? cc @theroinaochieng

alright

[josephjclark]

I haven't checked the PR but I'd love to only suggest workflows that have changed in the sandbox. Unchanged workflows should be deselected. Maybe even greyed out? (less sure on that so for now I think just deselect please)

When running QA on this, please can we verify:

• If I select a workflow to merge, changes in that workflow should appear on main
• If I do not select a workflow to merge, but that workflow has changed, those changes do not overrwrite main (ie, that unselected workflow is properly ignored)
• If I did not change a workflow, but I request to merge it anyway, AND if that workflow has changed on main, the sandbox version should be applied to main. This effectively rolls back main. I don't know if anyone wants or needs this, but it's the behaviour I expect out of the box

Maybe worth remembering in test that there are several types of change that we might see

• I could make a change in the sandbox and main was not changed
• I could make a change in the sandbox, and someone else made a change on main
• I could make a change on main but not touch the sandbox

If this branch fails any of these tests I think we need to create a new issue because main will fail too. I just want to run these tests while we have focus on it

[josephjclark]

@doc-han if a workflow is deleted from the sandbox, it needs to count as a change (type delete) which can optionally merged. Ticked by default. If ticked, the sandbox needs to be removed from main