fix(eventindexer, blobstorage): improved configuration and README documentation

[SamiAlHassan]

This pull request introduces updates to the eventindexer, providing clearer setup guidance.

Key Changes:

• Updated README.md to include detailed setup instructions.
• Created docker-compose.yml for the mysql db.
• Updated .env files (.default.env, .l1.env, and .l2.env) with the database credentials and the new contract addresses.

However, the files in taiko-mono/packages/eventindexer/contracts/ and in taiko-mono/packages/blobstorage/api need to be regenerated with the new contracts, as they are with the old addresses neither package works as both return no contract code at given address. Could someone guide me on how to do this, please?

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 19.92%. Comparing base (d6001d3) to head (1b77c96).
Report is 262 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main   #16652       +/-   ##
===========================================
- Coverage   49.37%   19.92%   -29.46%     
===========================================
  Files          56       45       -11     
  Lines        5827     2279     -3548     
===========================================
- Hits         2877      454     -2423     
+ Misses       2636     1769      -867     
+ Partials      314       56      -258     

Flag	Coverage Δ
eventindexer	19.92% <ø> (?)

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[vercel]

@SamiAlHassan is attempting to deploy a commit to the taikoxyz Team on Vercel.

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[vercel]

Deployment failed with the following error:

There is no GitHub account connected to this Vercel account.

[xiaodino]

Tests failed. Please open a new PR if it's needed. Close this one due to the lack of activities in the past months.