As suggested remove the battery again and dry the phone for a couple of days.
Will update this post with more …
If you have seen and followed the iFixIt guide you should not go beyond step 7 to keep the warranty. However if you find a red square as indicated the warranty will be void so you could dismantle more to better dry the insides of some modules.
Get water/dampness from the inside of the module take time ~ a cool to warm flow of air for a day or more.
Referring to this link you will see two white squares hopefully.
If charging is the only problem maybe the USB port picked up a bit of pizza from the dishwater.
For future ref and for others. I have dropped a phone in the tidal river for 12 hours and had to get it out by dragging a magnet through the mud ~ it couldn’t be seen.
Once I had retrieved it and removed the battery I thoroughly agitated the phone for ten minutes in clean water, left it submerged for another hour agitated it again in clean water all to remove and debris.
Once dry the phone worked fine for another three years. A Nokia 6300 from what I remember.
Clean water does not harm as long as there is no power to the phone but residue from dirty water that has dried is.
Clean and dry the best you can.