feat: rename commands and remove aliases in favour of completion

BREAKING CHANGE: changed commands as follows
D -> Docker
Dc -> Compose
Dj -> Django
Pg -> Postgres

src/cli/postgres.rs

@@ -5,14 +5,12 @@ 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,