chore: prepare KMP catalog aliases and coil core artifact [WPB-23490]

[Garzas]

https://wearezeta.atlassian.net/browse/WPB-23490

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What's new in this PR?

• adds the kotlin-multiplatform plugin alias to the version catalog
• switches coil-core-android to coil-core (the multiplatform artifact)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 0.00%. Comparing base (bbe7ef0) to head (a463955).
⚠️ Report is 1 commits behind head on develop.

Additional details and impacted files

@@       Coverage Diff       @@
##   develop   #4582   +/-   ##
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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud