feat: use kotlin timestamp instead of the java generated one

[MohamadJaara]

What's new in this PR

fully support apple targets in kalium we need to have a unified interface between the android/kmp bindings
this PR adds a custom type converted to the jvm/android bindings to use kotlin time class instead of the java one
it should add no changes to wasm/ios bindings only for kotlin

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PR Submission Checklist for internal contributors

• The PR Title
  • conforms to the style of semantic commits messages¹ supported in Wire's Github Workflow²
  • contains a reference JIRA issue number like SQPIT-764
  • answers the question: If merged, this PR will: ... ³

1. https://sparkbox.com/foundry/semantic_commit_messages
2. https://github.com/wireapp/.github#usage
3. E.g. feat(conversation-list): Sort conversations by most emojis in the title #SQPIT-764.

[istankovic]

TOML formatting check fails, please use taplo to fix it: https://github.com/wireapp/core-crypto?tab=readme-ov-file#toml

[istankovic]

Could you please drop the unnecessary merge commit and fold e318b39 into the first commit that introduced the changes?

[istankovic]

@MohamadJaara I see this type being added, but where is it actually used?

[istankovic]

@MohamadJaara could you please fold the second commit into the first one?

[MohamadJaara]

@istankovic, @coriolinus is there any changes needed to this PR or it can be merged?

[coriolinus]

Looks good, thanks for documenting what the target language mappings all are! I very much like that it allows us to stop using bare numbers as "number of seconds or milliseconds or something after the epoch"; that kind of interface is always fragile.