refactor(rust): cleanup path handling

- Avoids unnecessary string allocation when tracing paths
- Replaces `mut path & path.push()` with `path.join()`
- Avoids unncessary cloning of paths where applicable
- Use `dunce` crate to remove `UNC` prefix
- Improve performance of resolving `~` by avoiding unnecessary string allocations
- Resolve `~`, `$Env:USERPROFILE` and `$HOME` consistenly between different code paths
- Use `PathBuf` instead of `String` for paths in CLI args

I may have missed a couple of places but I think I covered 90% of path handling in the codebase

komorebic/Cargo.toml

@@ -15,8 +15,6 @@ derive-ahk = { path = "../derive-ahk" }
 komorebi-core = { path = "../komorebi-core" }
 
 clap = { version = "4", features = ["derive", "wrap_help"] }
-color-eyre = "0.6"
-dirs = "5"
 fs-tail = "0.1"
 heck = "0.4"
 lazy_static = "1"
@@ -30,3 +28,6 @@ sysinfo = "0.29"
 uds_windows = "1"
 which = "5"
 windows = { workspace = true }
+color-eyre = { workspace = true }
+dirs = { workspace = true }
+dunce = { workspace = true }