UI: Enforce snake case for functions

It's more common to write functions in camelCase in JS, so some people
started doing it, including me. But the majority of the codebase is
snake_case, so let's enforce that.

daemon/web/eslint.config.js

@@ -37,6 +37,17 @@ export default ts.config(
                 { argsIgnorePattern: '^_', varsIgnorePattern: '^_' },
             ],
             '@typescript-eslint/no-explicit-any': 'off',
+            '@typescript-eslint/naming-convention': [
+                'error',
+                {
+                    selector: 'function',
+                    format: ['snake_case'],
+                },
+                {
+                    selector: 'method',
+                    format: ['snake_case'],
+                },
+            ],
         },
     }
 );