Replace only leading home path with ~ in the title (#13600)

# Description :
- This pull request addresses issue #13594 where any substring of the
path that matches the home directory is replaced with `~` in the title
bar. This was problematic because partial matches within the path were
also being replaced.


---------

Signed-off-by: Aakash788 <aakashparmar788@gmail.com>
Co-authored-by: sholderbach <sholderbach@users.noreply.github.com>

crates/nu-cli/src/repl.rs

@@ -911,7 +911,12 @@ fn run_shell_integration_osc2(
 
         // Try to abbreviate string for windows title
         let maybe_abbrev_path = if let Some(p) = nu_path::home_dir() {
-            path.replace(&p.as_path().display().to_string(), "~")
+            let home_dir_str = p.as_path().display().to_string();
+            if path.starts_with(&home_dir_str) {
+                path.replacen(&home_dir_str, "~", 1)
+            } else {
+                path
+            }
         } else {
             path
         };