feat: finish django cli and add aliases

Implemented basic wanted functionality for django subcommands.

Added single or two letter aliases for all subsubcommands.

src/cli/postgres.rs

@@ -5,12 +5,14 @@ use clap::Subcommand;
 #[derive(Subcommand, Debug)]
 pub enum Postgres {
     /// Import dump via pg_restore
+    #[clap(alias("i"))]
     Import {
         #[arg(value_enum)]
         path: PathBuf,
     },
 
     /// Dump via pg_dump with format=c
+    #[clap(alias("d"))]
     Dump {
         #[arg(value_enum)]
         path: PathBuf,