call twmerge on className prop

Author: sawka

tsunami/frontend/src/vdom.tsx

@@ -5,6 +5,7 @@ import clsx from "clsx";
 import debug from "debug";
 import * as jotai from "jotai";
 import * as React from "react";
+import { twMerge } from "tailwind-merge";
 
 import { Markdown } from "@/element/markdown";
 import { getTextChildren } from "@/model/model-utils";
@@ -203,6 +204,10 @@ function convertProps(elem: VDomElem, model: TsunamiModel): GenericPropsType {
             }
             continue;
         }
+        if (key == "className" && typeof val === "string") {
+            props[key] = twMerge(val);
+            continue;
+        }
         if (isObject(val) && val.type == VDomObjType_Func) {
             const valFunc = val as VDomFunc;
             props[key] = convertVDomFunc(model, valFunc, elem.waveid, key);