It's hard to say for sure from just chapter 1. Maybe there are hints or foreshadowing, but we need more context to know if they will have dinner tonight.
Dinner photos were a type of document published through WeChat Moments to describe the scene and feelings of a dinner party. We can come to the following conclusion:
During a meal, the scene at the dinner table was usually a family or friend gathering together to enjoy delicious food and happy times. This was a feeling of happiness and sweetness, making people feel the beauty of youth and the happiness of life. The chat of friends at the dinner party could express this kind of happiness and beauty, letting people feel the warmth and joy of reunion.
However, the search results provided didn't have any specific examples or texts of dinner photos or table stories. Therefore, based on the information provided, he could not give a specific answer.