refactor: rename aim to upm and extract appimage module

crates/upm/Cargo.toml

@@ -0,0 +1,30 @@
+[package]
+name = "upm"
+version.workspace = true
+edition.workspace = true
+license.workspace = true
+
+[lib]
+path = "src/lib.rs"
+
+[[bin]]
+name = "upm"
+path = "src/main.rs"
+
+[dependencies]
+clap.workspace = true
+dialoguer.workspace = true
+console.workspace = true
+crossterm.workspace = true
+indicatif.workspace = true
+libc.workspace = true
+ratatui.workspace = true
+serde.workspace = true
+toml.workspace = true
+upm-appimage = { path = "../upm-appimage" }
+upm-core = { path = "../upm-core" }
+
+[dev-dependencies]
+assert_cmd.workspace = true
+predicates = "3.1.3"
+tempfile.workspace = true