Solved issue with refractor qim3d import structure, where qim3d.qim3d.qim3d happened.

Replaced the 'imports' in the __init__ file such that they do not import qim3d.io but instead import qim3d.io as io.
https://www.notion.so/Refactor-qim3d-import-structure-d6a4776d7d1e4fefb1b2592ce2e73b89

added minor issue label

requested review from @fima

assigned to @s184364

added 5 commits

• ca745469...74bffb97 - 4 commits from branch main
• f622f88b - Merge branch 'main' into 'refractor_import'

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approved this merge request

mentioned in commit f7c4877d

merged