[Improvement-4740][UI] Set the default Tenant as default or the first exist tenant in save process (#4742)

dolphinscheduler-ui/src/js/conf/home/pages/dag/_source/udp/udp.vue

@@ -213,10 +213,10 @@
       this.timeout = dag.timeout || 0
       this.checkedTimeout = this.timeout !== 0
       this.$nextTick(() => {
-        if (dag.tenantId === -1) {
-          this.tenantId = this.store.state.user.userInfo.tenantId
-        } else {
+        if (dag.tenantId > -1) {
           this.tenantId = dag.tenantId
+        } else if (this.store.state.user.userInfo.tenantId) {
+          this.tenantId = this.store.state.user.userInfo.tenantId
         }
       })
     },

dolphinscheduler-ui/src/js/conf/home/pages/security/pages/users/_source/createUser.vue

@@ -293,7 +293,7 @@
             this.email = this.item.email
             this.phone = this.item.phone
             this.userState = this.item.state + '' || '1'
-            if (this.item.tenantName) {
+            if (this.item.tenantId) {
               this.tenantId = this.item.tenantId
             }
             this.$nextTick(() => {
@@ -311,7 +311,7 @@
           this.email = this.item.email
           this.phone = this.item.phone
           this.userState = this.state + '' || '1'
-          if (this.item.tenantName) {
+          if (this.item.tenantId) {
             this.tenantId = this.item.tenantId
           }
           if (this.queueList.length > 0) {