Fortunately it’s a bit easier to take the parts out of an app (vs. a car) to see what they do!
Adding a snippet in your Appearance settings can change how that bit of CSS works. Copy and paste the following into a text file, save it as “inline emoji.css” (or whatever), save that file in the vault’s Snippets folder (see the little folder icon on that section in Appearance), then toggle the snippet on.
img {
display: inline-block !important;
}
The above might not work right away, but I’m sure a bit of experimentation will lead to what you’re hoping for.