Ctrl+s in interactive mode on Windows contains weird prefix

[bgreenwell]

In src/tui.rs, before starting the interactive session, the application calls the standard Rust function std::fs::canonicalize(). On Windows, this function's job is to create a fully resolved path. A side effect is that it often prepends the \\?\ prefix. This prefix turns it into a "verbatim path," which bypasses some legacy Windows path-length limits but is not user-friendly and looks strange. The application then uses this verbatim path internally, so when a user hits Ctrl+s to print the selected file, they get the path with the undesirable prefix.