Update Current State - Completed vs Current Work

[0xadri]

Moved the relevant points from Next Steps to Current Work to Completed. This simply match the latest state on https://github.com/ChainSafe/ethermint

• Targeted PR against correct branch (see CONTRIBUTING.md)

• [n/a] Linked to github-issue with discussion and accepted design OR link to spec that describes this work.

• [n/a] Wrote tests

• [n/a] Updated relevant documentation (docs/)

• [n/a] Added entries in PENDING.md with issue #

• [n/a] rereviewed Files changed in the github PR explorer

note why: not a code change

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For Admin Use:

• Added appropriate labels to PR (ex. wip, ready-for-review, docs)
• Reviewers Assigned
• Squashed all commits, uses message "Merge pull request #XYZ: [title]"