Contract Lookup Page improvements (#lookup)

[kuzdogan]

Our contract lookup page https://sourcify.dev/#/lookup hasn't been updated in a while. I also noticed an unexpected behavior (not really a bug) so taking this chance to open an issue around this.

Issue:

• When you type in anything in the lookup form and click enter it directly clicks "Example Contract". This leads to people thinking for example an ENS name resolving to this wrong address

Additional ToDos gathered here:

• Resolve ENS names
• Make the look and feel similar to https://verify.sourcify.dev
• Stop using the legacy API for the lookup

Another small thing is, this the only page that's using the HashRouter with /#/lookup. Ideally we should also get rid of the HashRouter but we get quite some traffic here directly and through the path-search /#/lookup/0x1F98431c8aD98523631AE4a59f267346ea31F984. We can think about setting a reroute or how to get rid of it.

[manuelwedler]

Tbh, I thought why we actually need the lookup page. Why don't we simply link to the repo from the navigation menu? We could implement the multi-chain lookup also in repo. The old UI could become only a static landing page to simplify things.

[kuzdogan]

I just didn't get how you want to replace the existing url, to not break the existing links

[manuelwedler]

We can forward the existing url to the repo UI. We can have the multi-chain lookup at repo.sourcify.dev/all-chains/{address} or something similar. Then simply forward the traffic to there.