Reduced the size of js bundles

[carterqw2]

GitHub keywords to close any associated issues

Motivation

Including the staking page to the app.js bloats all the js bundles with unnecessary web3 dependency.

Before:

After:

Changelog

Enhancements

Optimizes the size of the code highlighting script by removing unnecessary dependencies and including only relevant languages to the build. And fixes the 404 issue for the script on the raw traces tab.

Checklist for your Pull Request (PR)

• I added an entry to CHANGELOG.md with this PR
• If I added new functionality, I added tests covering it.
• If I fixed a bug, I added a regression test to prevent the bug from silently reappearing again.
• I checked whether I should update the docs and did so by submitting a PR to https://github.com/blockscout/docs
• If I added/changed/removed ENV var, I submitted a PR to https://github.com/blockscout/docs to update the list of env vars at https://github.com/blockscout/docs/blob/master/for-developers/information-and-settings/env-variables.md and I updated the version to master in the Version column. Changes will be reflected in this table: https://docs.blockscout.com/for-developers/information-and-settings/env-variables.
• If I add new indices into DB, I checked, that they are not redundant with PGHero or other tools

[vbaranov]

@carterqw2 thank you, I finalized this PR by fixing js adding for staking dapp in #5172. I am closing the current PR.