对状态管理文档的修改：LocalStorage中@ProA的修改、大小驼峰的修改

Signed-off-by: Nwangyanchao <wangyanchao16@huawei.com>
Change-Id: Ief0436eaf8dc238d6a6fd1195cdc563b97604c06

zh-cn/application-dev/quick-start/arkts-localstorage.md

@@ -197,12 +197,12 @@ storage['PropA'] = 47;
 
 @Component
 struct Child {
-  // @LocalStorageLink变量装饰器与LocalStorage中的'ProA'属性建立双向绑定
+  // @LocalStorageLink变量装饰器与LocalStorage中的'PropA'属性建立双向绑定
   @LocalStorageLink('PropA') storLink2: number = 1;
 
   build() {
     Button(`Child from LocalStorage ${this.storLink2}`)
-      // 更改将同步至LocalStorage中的'ProA'以及Parent.storLink1
+      // 更改将同步至LocalStorage中的'PropA'以及Parent.storLink1
       .onClick(() => this.storLink2 += 1)
   }
 }
@@ -210,7 +210,7 @@ struct Child {
 @Entry(storage)
 @Component
 struct CompA {
-  // @LocalStorageLink变量装饰器与LocalStorage中的'ProA'属性建立双向绑定
+  // @LocalStorageLink变量装饰器与LocalStorage中的'PropA'属性建立双向绑定
   @LocalStorageLink('PropA') storLink1: number = 1;
 
   build() {
@@ -242,7 +242,7 @@ storage['PropA'] = 47;
 @Entry(storage)
 @Component
 struct CompA {
-  // @LocalStorageProp变量装饰器与LocalStorage中的'ProA'属性建立单向绑定
+  // @LocalStorageProp变量装饰器与LocalStorage中的'PropA'属性建立单向绑定
   @LocalStorageProp('PropA') storProp1: number = 1;
 
   build() {
@@ -257,7 +257,7 @@ struct CompA {
 
 @Component
 struct Child {
-  // @LocalStorageProp变量装饰器与LocalStorage中的'ProA'属性建立单向绑定
+  // @LocalStorageProp变量装饰器与LocalStorage中的'PropA'属性建立单向绑定
   @LocalStorageProp('PropA') storProp2: number = 2;
 
   build() {
@@ -401,12 +401,12 @@ export default class EntryAbility extends UIAbility {
 }
 ```
 
-在UI页面通过GetShared接口获取在通过loadContent共享的LocalStorage实例。
+在UI页面通过getShared接口获取在通过loadContent共享的LocalStorage实例。
 
 
 ```ts
-// 通过GetShared接口获取stage共享的LocalStorage实例
-let storage = LocalStorage.GetShared()
+// 通过getShared接口获取stage共享的LocalStorage实例
+let storage = LocalStorage.getShared()
 
 @Entry(storage)
 @Component