feat：replace materials icon (opentiny#1424)

Author: xuanlid

designer-demo/public/mock/bundle.json

@@ -13331,7 +13331,7 @@
               "name": {
                 "zh_CN": "互斥按钮组"
               },
-              "icon": "buttons",
+              "icon": "MutexButtons",
               "snippetName": "TinyButtonGroup",
               "screenshot": "",
               "schema": {

packages/builtinComponent/src/meta/CanvasFlexBox.json

@@ -1,6 +1,6 @@
 {
   "component": {
-    "icon": "Box",
+    "icon": "FlexBox",
     "name": {
       "zh_CN": "弹性容器"
     },
@@ -208,7 +208,7 @@
     },
     "screenshot": "",
     "snippetName": "CanvasFlexBox",
-    "icon": "Box",
+    "icon": "FlexBox",
     "schema": {
       "componentName": "CanvasFlexBox",
       "props": {

packages/builtinComponent/src/meta/CanvasRowColContainer.json

@@ -1,6 +1,6 @@
 {
   "component": {
-    "icon": "Box",
+    "icon": "RowColContainer",
     "name": {
       "zh_CN": "行列容器"
     },
@@ -64,7 +64,7 @@
     },
     "screenshot": "",
     "snippetName": "CanvasRowColContainer",
-    "icon": "Box",
+    "icon": "RowColContainer",
     "schema": {
       "componentName": "CanvasRowColContainer",
       "props": {

packages/builtinComponent/src/meta/CanvasSection.json

@@ -1,6 +1,6 @@
 {
   "component": {
-    "icon": "Box",
+    "icon": "FullWidthCenter",
     "name": {
       "zh_CN": "全宽居中布局"
     },
@@ -62,7 +62,7 @@
     },
     "screenshot": "",
     "snippetName": "CanvasSection",
-    "icon": "Box",
+    "icon": "FullWidthCenter",
     "schema": {
       "componentName": "CanvasSection",
       "props": {}