Plugins: Move alias support to plugin json (but still hardcoded) (#75129)

pkg/plugins/plugindef/plugindef.cue

@@ -18,6 +18,10 @@ schemas: [{
 		id: string & strings.MinRunes(1)
 		id: =~"^([0-9a-z]+\\-([0-9a-z]+\\-)?(\(strings.Join([ for t in _types {t}], "|"))))|(alertGroups|alertlist|annolist|barchart|bargauge|candlestick|canvas|dashlist|debug|datagrid|gauge|geomap|gettingstarted|graph|heatmap|histogram|icon|live|logs|news|nodeGraph|piechart|pluginlist|stat|state-timeline|status-history|table|table-old|text|timeseries|trend|traces|welcome|xychart|alertmanager|cloudwatch|dashboard|elasticsearch|grafana|grafana-azure-monitor-datasource|graphite|influxdb|jaeger|loki|mixed|mssql|mysql|opentsdb|postgres|prometheus|stackdriver|tempo|grafana-testdata-datasource|zipkin|phlare|parca)$"
 
+		// An alias is useful when migrating from one plugin id to another (rebranding etc)
+		// This should be used sparingly, and is currently only supported though a hardcoded checklist
+		aliasIDs?: [...string]
+		
 		// Human-readable name of the plugin that is shown to the user in
 		// the UI.
 		name: string