I've built a similar app but for desktop GUI. The UI is very similar to this app because I like TUI style UI due to the efficient use of UI space.
It focuses more on editing and exploring data for power users. UI space is utilized well. Exploring millions of rows is a breeze. Writing SQLs and managing them is pleasant with the multi-tab approach.
I'm working through adding the shortcuts and modal mode. I want to make it more like vim where you just use shortcuts to do things.
It supports postgres, click house, and sqlite
I'm looking for early beta users. If you are interested in a GUI version, here: https://github.com/tanin47/backdoor