fix dashboard button router-link bug

Author: spiritree

src/views/dashboard/editor/index.vue

@@ -27,7 +27,7 @@
 				<router-link class="pan-btn tiffany-btn" to="/example/form/edit">Form</router-link>
 			</el-col>
 			<el-col :span="4" class='text-center'>
-				<router-link class="pan-btn yellow-btn" to="/example/form/edit">Theme</router-link>
+				<router-link class="pan-btn yellow-btn" to="/theme/index">Theme</router-link>
 			</el-col>
 		</el-row>