feat: 键 tab 自动打开, 去掉右上角键按钮

- keys tab 和 status tab 一样不可关闭 (closable: false)
- 连接成功时自动打开 status + keys 两个 tab
- 右上角按钮组移除键按钮

src/renderer/src/components/MainArea.vue

@@ -50,7 +50,7 @@ function makeTab(type: Tab['type']): Tab {
     type,
     title: titles[type],
     icon: icons[type],
-    closable: type !== 'status',
+    closable: type !== 'status' && type !== 'keys',
   }
 }
 
@@ -151,7 +151,7 @@ function restoreTabState(connId: string) {
     tabs.value = state.tabs
     activeTabId.value = state.activeTabId
   } else {
-    tabs.value = [makeTab('status')]
+    tabs.value = [makeTab('status'), makeTab('keys')]
     activeTabId.value = tabs.value[0].id
   }
 }
@@ -266,9 +266,6 @@ onUnmounted(() => {
 
     <!-- Tab open buttons (when connected) -->
     <div class="tab-opener" v-if="connStore.isConnected">
-      <button class="opener-btn" @click="openTab('keys')" :title="t('key.title')">
-        <el-icon><Document /></el-icon>
-      </button>
       <button class="opener-btn" @click="openTab('cli')" :title="t('cli.title')">
         <el-icon><Monitor /></el-icon>
       </button>