Aditya

Addition of email icon in the footer in the contact section

Fix: Respect encode.value in visualMap for multi-column datasets

2

## Brief Information This pull request is in the type of: - [x] bug fixing - [ ] new feature - [ ] others ### What does this PR do?...

Fix/bug multiple brush and opacity

1

## Brief Information This pull request is in the type of: - [ ] bug fixing - [x] new feature - [ ] others ### What does this PR do?...

https://github.com/apache/echarts/pull/21369