fix(zsh): Fix p10k's title

[yutkat]

No description provided.

[Copilot]

Pull request overview

Updates the Zsh precmd hook that sets the terminal window title so it no longer relies on prompt escape expansion, and instead derives a short directory label directly from $PWD (with ~ for $HOME), addressing incorrect titles under p10k.

Changes:

• Replace %1~ prompt escape usage with ${PWD:t} to compute the title directory name.
• Normalize the title to ~ when the current directory is $HOME.
• Remove stray blank lines at the end of the hook setup.

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[gemini-code-assist]

Code Review

This pull request modifies the precmd_prompt function in .config/zsh/rc/function.zsh to manually construct the terminal title based on the current working directory, replacing the previous use of zsh's %1~ expansion. The reviewer identified a bug where the root directory (/) is not correctly displayed in the title, and also noted a potential issue with print -n misinterpreting backslashes in directory names. A code suggestion was provided to address these issues.

[gemini-code-assist]

The manual implementation of the directory name logic introduces a minor bug: when the current working directory is the root directory (/), ${PWD:t} evaluates to an empty string, resulting in a terminal title of zsh:.

Additionally, using print -n without the -r flag causes print to interpret any backslashes that might be present in the directory name (e.g., a directory named foo\bar). For better robustness, consider handling the root case and using print -rn with literal escape sequences.

		local dir=${${PWD:t}:-/}
		[[ $PWD == $HOME ]] && dir="~"
		print -rn $'\e]2;zsh:'"${dir}"$'\a'