fix：删除监控的kill按钮 修改duration显示规则 以及 添加鼠标hover

nezha-fronted/src/components/common/js/tools.js

@@ -295,6 +295,18 @@ export function calcDurationByStringTime(startTime, endTime) {
   }
   return result;
 }
+export function calcDurationByStringTimeB(startTime, endTime) {
+  let durationSecond = stringTimeParseToUnix(endTime)-stringTimeParseToUnix(startTime);
+  let result = `${durationSecond%60}s`;
+  if (durationSecond > 60*60) {
+    result = `${(Math.floor(durationSecond/60))%60}m`
+    result = `${Math.floor(durationSecond/(60*60))}h ${result}`;
+  }else if(durationSecond > 60) {
+    result = `${(Math.floor(durationSecond/60))%60}m ${result}`;
+  }
+  
+  return result;
+}
 export function unixTimeParseToString(unixTime,fmt='yyyy-MM-dd hh:mm:ss'){
   let date=new Date(unixTime * 1000);
   var o = {