[explorer] Make epochs and checkpoints "searchable" via their sequence number

[philou-078]

Description

The "Search" field does not currently allow you to search for epochs (via their sequence number: 1, 2, 3, ...) or checkpoints (via their sequence number: 11427942, 11427943, ...)

Please add the ability to do this search

Motivation

I often need to access a specific epoch or checkpoint via their sequence number.

(I can work around this by creating my own URL: /epoch/nnn and /checkpoint/nnn but this is not very practical)

Requirements

Write a list of what you want this feature to do.

1. Search for epoch sequence number
2. Search for checkpoint sequence number
3. Add a help icon showing all available search types ?

Are you planning to do it yourself in a pull request?

No.

[github-actions]

This issue is stale because it has been open 180 days with no activity.