fix: removed files adding again in edit mode

[uinstinct]

Description

When adding files in the edit mode's add file select box, we are adding the removed files as well.

We need to update the codeToEdit redux state (whenever it changes) with the Combobox's local selectedFiles state

Checklist

• [] The relevant docs, if any, have been updated or created
• [] The relevant tests, if any, have been updated or created

Screenshots

before.mp4

after.mp4

Testing instructions

• open the edit mode
• select 2-3 files using the add file input and dropdown
• remove any of the selected files
• add another different file
• see that the removed file is added again even though a different file was added

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