fix: invalid prop types (#1991)

packages/area/index.ts

@@ -18,7 +18,7 @@ VantComponent({
       value: {}
     },
     columnsNum: {
-      type: [String, Number],
+      type: null,
       value: 3
     }
   },

packages/mixins/transition.ts

@@ -21,7 +21,7 @@ export const transition = function (showDefaultValue: boolean) {
       },
       // @ts-ignore
       duration: {
-        type: [Number, Object],
+        type: null,
         value: 300,
         observer: 'observeDuration'
       },

packages/overlay/index.ts

@@ -7,7 +7,7 @@ VantComponent({
     mask: Boolean,
     customStyle: String,
     duration: {
-      type: [Number, Object],
+      type: null,
       value: 300
     },
     zIndex: {

packages/tabbar-item/index.ts

@@ -3,11 +3,9 @@ import { VantComponent } from '../common/component';
 VantComponent({
   props: {
     info: null,
+    name: null,
     icon: String,
-    dot: Boolean,
-    name: {
-      type: [String, Number]
-    }
+    dot: Boolean
   },
 
   relation: {

packages/tabbar/index.ts

@@ -22,7 +22,7 @@ VantComponent({
 
   props: {
     active: {
-      type: [Number, String],
+      type: null,
       observer: 'updateChildren'
     },
     activeColor: {

packages/tree-select/index.ts

@@ -15,13 +15,11 @@ VantComponent({
 
   props: {
     items: Array,
+    activeId: null,
     mainActiveIndex: {
       type: Number,
       value: 0
     },
-    activeId: {
-      type: [Number, String, Array]
-    },
     maxHeight: {
       type: Number,
       value: 300