fix(signature): 修复抖音支付宝等小程序无法获取到canvas节点 (#3289)

Author: Chef5

src/packages/__VUE/signature/index.taro.vue

@@ -164,7 +164,7 @@ export default create({
     onMounted(() => {
       Taro.nextTick(() => {
         setTimeout(() => {
-          if (Taro.getEnv() === 'WEAPP' || Taro.getEnv() === 'JD') {
+          if (['WEAPP', 'JD', 'TT', 'SWAN', 'ALIPAY', 'QQ'].includes(Taro.getEnv())) {
             Taro.createSelectorQuery()
               .select('#' + canvasSetId)
               .fields(