fix: update kitty config url

Use standard naming convention to match other config repositories:

- kitty-conf -> kitty-config

.chezmoiexternal.toml

@@ -1,11 +1,11 @@
 [".config/fish"]
-    type = "git-repo"
-    url = "https://git.rootiest.dev/rootiest/fish-config.git"
+type = "git-repo"
+url = "https://git.rootiest.dev/rootiest/fish-config.git"
 
 [".config/kitty"]
-    type = "git-repo"
-    url = "https://git.rootiest.dev/rootiest/kitty-conf.git"
+type = "git-repo"
+url = "https://git.rootiest.dev/rootiest/kitty-config.git"
 
 [".config/nvim"]
-    type = "git-repo"
-    url = "https://git.rootiest.dev/rootiest/neovim-config.git"
+type = "git-repo"
+url = "https://git.rootiest.dev/rootiest/neovim-config.git"

README.md

@@ -9,7 +9,7 @@ This repository is the single source of truth for my system configuration. Rathe
 | Config | Repository | Destination |
 |--------|-----------|-------------|
 | [Fish Shell](https://git.rootiest.dev/rootiest/fish-config) | `fish-config` | `~/.config/fish` |
-| [Kitty Terminal](https://git.rootiest.dev/rootiest/kitty-conf) | `kitty-conf` | `~/.config/kitty` |
+| [Kitty Terminal](https://git.rootiest.dev/rootiest/kitty-config) | `kitty-config` | `~/.config/kitty` |
 | [Neovim](https://git.rootiest.dev/rootiest/neovim-config) | `neovim-config` | `~/.config/nvim` |
 
 ## Highlights
@@ -65,7 +65,7 @@ dotfiles/
 ## Related repositories
 
 - [fish-config](https://git.rootiest.dev/rootiest/fish-config) — Fish shell configuration
-- [kitty-conf](https://git.rootiest.dev/rootiest/kitty-conf) — Kitty terminal configuration
+- [kitty-conf](https://git.rootiest.dev/rootiest/kitty-config) — Kitty terminal configuration
 - [neovim-config](https://git.rootiest.dev/rootiest/neovim-config) — Neovim configuration
 
 ## License