Add current alias to all files (#48635)

* Add aliases to all files

Signed-off-by: Jack Baldry <jack.baldry@grafana.com>

* Prettify front matter

Signed-off-by: Jack Baldry <jack.baldry@grafana.com>

docs/sources/developers/plugins/package-a-plugin.md

@@ -1,7 +1,7 @@
 +++
+aliases = ["/docs/grafana/latest/developers/plugins/package-a-plugin/", "/docs/grafana/latest/developers/plugins/share-a-plugin/"]
 title = "Package a plugin"
 type = "docs"
-aliases = ["/docs/grafana/latest/developers/plugins/share-a-plugin/"]
 +++
 
 # Package a plugin