Allow extension register custom topbar menu command (#982)

* Refactor command store

* Rename coreMenuStore to menuStore

* Extension API to register command

* Update README

* Add playwright test

src/components/sidebar/tabs/QueueSidebarTab.vue

@@ -36,7 +36,9 @@
           icon="pi pi-stop"
           severity="danger"
           text
-          @click="() => commandStore.getCommand('Comfy.ClearPendingTasks')()"
+          @click="
+            () => commandStore.getCommandFunction('Comfy.ClearPendingTasks')()
+          "
           v-tooltip.bottom="$t('sideToolbar.queueTab.clearPendingTasks')"
         />
         <Button

src/components/sidebar/tabs/WorkflowsSidebarTab.vue

@@ -6,27 +6,33 @@
         icon="pi pi-th-large"
         v-tooltip="$t('sideToolbar.browseTemplates')"
         text
-        @click="() => commandStore.getCommand('Comfy.BrowseTemplates')()"
+        @click="
+          () => commandStore.getCommandFunction('Comfy.BrowseTemplates')()
+        "
       />
       <Button
         class="browse-workflows-button"
         icon="pi pi-folder-open"
         v-tooltip="'Browse for an image or exported workflow'"
         text
-        @click="() => commandStore.getCommand('Comfy.OpenWorkflow')()"
+        @click="() => commandStore.getCommandFunction('Comfy.OpenWorkflow')()"
       />
       <Button
         class="new-default-workflow-button"
         icon="pi pi-code"
         v-tooltip="'Load default workflow'"
         text
-        @click="() => commandStore.getCommand('Comfy.LoadDefaultWorkflow')()"
+        @click="
+          () => commandStore.getCommandFunction('Comfy.LoadDefaultWorkflow')()
+        "
       />
       <Button
         class="new-blank-workflow-button"
         icon="pi pi-plus"
         v-tooltip="'Create a new blank workflow'"
-        @click="() => commandStore.getCommand('Comfy.NewBlankWorkflow')()"
+        @click="
+          () => commandStore.getCommandFunction('Comfy.NewBlankWorkflow')()
+        "
         text
       />
     </template>