I don’t know how to
She is a good coworker, meaning she knows her duties and has ample experience.
She is also a gossip and a person that will rant when somebody doesn’t greet her the way she believes she deserves to be greeted, or about how a coworker or manager wasn’t friendly to her. It’s both what she says and how she says it, like she was hurt.
I still don’t know if what she wants is that everyone stops doing their jobs when she enters the workplace to give her attention, because otherwise, apparently, people hate her. She is also very pretty. Not that I’d want a relationship with her, because this trait is very off putting.
I’ve already heard her saying I’m not friendly and I don’t know who should I react. I think it’s ridiculous to start giving her attention to keep the peace because I have things to do that pay my bills and it would be very draining, I cannot fake interest in things that bore me. I don’t understand why we can’t just do our jobs and go home.
You sound annoyed at her and the way she is greeting people. While it may not feel that way, this annoyance is not invisible to others. Especially to her.
If you appear annoyed and also respond with reluctant short answers - it is natural to interpret you as hostile if she’s not used to people like that.
Try talking to her - say you think she is a competent and friendly coworker. Say it might sound silly and weird but you find it hard and stressful to pull your head out of work to greet people, and say you hope she will understand you mean no ill if you sometimes grunt and nod.
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Yes, I have resolved workplace awkwards like this on a few occasions. Sometimes it doesn’t work. Some humility in considering your social skills might be lacking goes a long way in many (not all!) cases.