feat(config): add television cable integration and related keybindings across shells

dot_config/zsh/functions/gho.zsh

@@ -1,7 +1,8 @@
-# Pick a ghq repo / Obsidian vault + cd; picker lives in ~/.local/bin/gho.
+# Pick a ghq repo / Obsidian vault with tv (ghq-repos cable) + cd.
 gho() {
     local dir
-    dir=$(command gho) || return
+    dir=$(tv ghq-repos) || return
+    [ -n "$dir" ] || return
     cd "$dir" || return
     clear
     if [ -d .git ]; then