ksud: Optimise ksud (#576)

* opt: Optimize printing for result isn't successful
- print chain && backtrace to stderr

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* ci(ksud): add CARGO_TERM_COLOR for build

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* fix(ksud): fix uninstall package name is `me.weishu.kernelsu`

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* fix(ksud): Reverted to a private function for get_kernel_version

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* chore: format code for magic_mount.rs

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* fix: fix rustfmt

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* feat: Move the statement to the correct place && remove allow dead_code

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---------

Signed-off-by: Tools-app <localhost.hutao@gmail.com>

userspace/ksud/src/cli.rs

@@ -625,7 +625,11 @@ pub fn run() -> Result<()> {
     };
 
     if let Err(e) = &result {
-        log::error!("Error: {e:?}");
+        for c in e.chain() {
+            log::error!("{c:#?}");
+        }
+
+        log::error!("{:#?}", e.backtrace());
     }
     result
 }