Add publish Action for Nextion components

[pkejval]

Description:

Related issue (if applicable): fixes

Pull request in esphome with YAML changes (if applicable): esphome/esphome#7646

Checklist:

• I am merging into next because this is new documentation that has a matching pull-request in esphome as linked above.
  or

• I am merging into current because this is a fix, change and/or adjustment in the current documentation and is not for a new component or feature.

• Link added in /index.rst when creating new documents for new components or cookbook.

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[kbx81]

Just a couple RST tweaks -- also, please wrap long lines at no more than 120 columns. Thanks!

[esphome]

Please take a look at the requested changes, and use the Ready for review button when you are done, thanks 👍

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[kbx81]

...aaannnddd realized I missed these, too. haha

[pkejval]

Just a couple RST tweaks -- also, please wrap long lines at no more than 120 columns. Thanks!

Why do I need to wrap lines? Original documentation has lines longer than 120 columns. These should be wrapped too? I think this is beyond my PR.

[kbx81]

Just a couple RST tweaks -- also, please wrap long lines at no more than 120 columns. Thanks!

Why do I need to wrap lines? Original documentation has lines longer than 120 columns. These should be wrapped too? I think this is beyond my PR.

Last bullet point here -- please do this on any new lines you've added to the document. You don't need to go through the whole document and do this, but we also certainly wouldn't mind if you do. 😄