feat:update: 优化登录细节

src/sheep/views/login/index.vue

@@ -11,7 +11,7 @@
           <div v-if="login.type == 'input'" class="login-wrap sa-flex sa-flex-center sa-flex-1">
             <div class="admin-name">
               <div>
-                <div class="sa-line-1">欢迎来到{{ appName }}!</div>
+                <div class="sa-line-1">欢迎来到{{ appName }}</div>
                 <div class="admin-welcome">很高兴再次见到您</div>
               </div>
             </div>