Add bottom panel support (#1294)

* Add bottom panel

* Bottom panel store

* Extract ExtensionSlot component

* Tab rendering

* Add toggle button on top menu bar

* nit

* Add toggle button tooltip

* Add command

src/components/topbar/BottomPanelToggleButton.vue

@@ -0,0 +1,23 @@
+<template>
+  <Button
+    v-show="bottomPanelStore.bottomPanelTabs.length > 0"
+    severity="secondary"
+    text
+    @click="bottomPanelStore.toggleBottomPanel"
+    v-tooltip="{ value: $t('menu.toggleBottomPanel'), showDelay: 300 }"
+  >
+    <template #icon>
+      <i-material-symbols:dock-to-bottom
+        v-if="bottomPanelStore.bottomPanelVisible"
+      />
+      <i-material-symbols:dock-to-bottom-outline v-else />
+    </template>
+  </Button>
+</template>
+
+<script setup lang="ts">
+import { useBottomPanelStore } from '@/stores/workspace/bottomPanelStore'
+import Button from 'primevue/button'
+
+const bottomPanelStore = useBottomPanelStore()
+</script>