vertical column autoMerge needed for HTML mode

[sceneryback]

Is your feature request related to a problem? Please describe.
Currently vertical autoMerge works well with console table mode, but doesn't work with html mode
html mode:

normal mode:

Describe the solution you'd like
Need this for html mode, any workaround?

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
Add any other context or screenshots about the feature request here.

[jedib0t]

Hey @sceneryback ... vertical merge is not supported in modes other than the console table: https://github.com/jedib0t/go-pretty/blob/main/table/config.go#L25-L34 - as of now, I don't have plans to support it.

[jedib0t]

Hey @sceneryback, I supported vertical merging in HTML rendering with a commit in the branch table-vmerge-html - can you test it out and let me know if it works as you want? I'm sure I've missed some cases in my testing.

Please note that row and column auto-merge applied together is not supported, and row-auto-merge takes precedence.