chore: update leycm-init version to 1.3 in libs.versions.toml

Add ConcurrentHashMap import in Instanceable.java and Keyable.java
Improve documentation in Registry.java

refactor(dependencies): add new parser libraries and update bundles

refactor(instance): rename Initialize to Instance

Rename InitializableRegistry to InstanceableRegistry
Rename Initializable to Instanceable
Update Javadocs to match the new classnames

refactor(instance): rename Initialize to Instance

Rename InitializableRegistry to InstanceableRegistry
Rename Initializable to Instanceable
Update Javadocs to match the new classnames