[gnome-builder/wip/gtk4-port] plugins/markdown-preview: start with action disabled

[Christian Hergert <chergert src gnome org>]

commit 330a84991d3c0fd6d560401a81c1a857978aa5c7
Author: Christian Hergert <chergert redhat com>
Date:   Mon Jun 6 16:09:49 2022 -0700

    plugins/markdown-preview: start with action disabled

 src/plugins/markdown-preview/gbp-markdown-preview-workspace-addin.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/src/plugins/markdown-preview/gbp-markdown-preview-workspace-addin.c 
b/src/plugins/markdown-preview/gbp-markdown-preview-workspace-addin.c
index 779ace827..7fe48d6f7 100644
--- a/src/plugins/markdown-preview/gbp-markdown-preview-workspace-addin.c
+++ b/src/plugins/markdown-preview/gbp-markdown-preview-workspace-addin.c
@@ -211,6 +211,7 @@ gbp_markdown_preview_workspace_addin_class_init (GbpMarkdownPreviewWorkspaceAddi
 static void
 gbp_markdown_preview_workspace_addin_init (GbpMarkdownPreviewWorkspaceAddin *self)
 {
+  gbp_markdown_preview_workspace_addin_set_action_enabled (self, "markdown-preview", FALSE);
 }
 
 static char *