Server: Switch from separate server & cli to a unified grafana binary (#58286)

* avoid the need for a second bulky binary for grafana-cli

* look for grafana-server in $PATH as well as same directory

* implement unified "grafana" command

* update dockerfiles, fix grafana-cli -v

* update packaging to work with single binary

- add wrapper scripts for grafana and grafana-server
- update and sync package files
- implement --sign flag of build package command
- stop packaging scripts folder, they are not useful for end users
- add support for --configOverrides in server command
- remove unused nfpm.yaml config file

* windows support

pkg/cmd/grafana-cli/commands/commands.go

@@ -78,7 +78,8 @@ func initCfg(cmd *utils.ContextCommandLine) (*setting.Cfg, error) {
 	cfg, err := setting.NewCfgFromArgs(setting.CommandLineArgs{
 		Config:   cmd.ConfigFile(),
 		HomePath: cmd.HomePath(),
-		Args:     append(configOptions, cmd.Args().Slice()...), // tailing arguments have precedence over the options string
+		// tailing arguments have precedence over the options string
+		Args: append(configOptions, cmd.Args().Slice()...),
 	})
 
 	if err != nil {