styles: 分割线默认样式为实线 (#8052)

* styles: 分割线默认样式为实线

* 更新快照

---------

Co-authored-by: qinhaoyan <30946345+qinhaoyan@users.noreply.github.com>

packages/amis/__tests__/renderers/Form/__snapshots__/combo.test.tsx.snap

@@ -1631,7 +1631,7 @@ exports[`Renderer:combo with items & multiLine 1`] = `
           />
         </div>
         <div
-          class="cxd-Divider cxd-Divider--dashed"
+          class="cxd-Divider cxd-Divider--solid"
         />
         <div
           class="cxd-Form-item cxd-Form-item--horizontal"

packages/amis/__tests__/renderers/__snapshots__/Action.test.tsx.snap

@@ -180,7 +180,7 @@ exports[`Renderers:Action all levels 1`] = `
             </span>
           </button>
           <div
-            class="cxd-Divider cxd-Divider--dashed"
+            class="cxd-Divider cxd-Divider--solid"
           />
           <div
             class="cxd-Button cxd-Button--link cxd-Button--size-default is-disabled"

packages/amis/__tests__/renderers/__snapshots__/GridNav.test.tsx.snap

@@ -108,7 +108,7 @@ exports[`Renderer:gridnav 1`] = `
             </div>
           </div>
           <div
-            class="cxd-Divider cxd-Divider--dashed"
+            class="cxd-Divider cxd-Divider--solid"
           />
           <div
             class="cxd-GridNav  cxd-GridNav-top u-hairline"

packages/amis/__tests__/renderers/__snapshots__/Image.test.tsx.snap

@@ -472,7 +472,7 @@ exports[`Renderer:images images:basic 1`] = `
             </div>
           </div>
           <div
-            class="cxd-Divider cxd-Divider--dashed"
+            class="cxd-Divider cxd-Divider--solid"
           />
           <div
             class="cxd-ImagesField"

packages/amis/src/renderers/Divider.tsx

@@ -19,7 +19,7 @@ export interface DividerProps
 export default class Divider extends React.Component<DividerProps, object> {
   static defaultProps: Pick<DividerProps, 'className' | 'lineStyle'> = {
     className: '',
-    lineStyle: 'dashed'
+    lineStyle: 'solid'
   };
 
   render() {