docs: remove obsolete Claude Code and omp docs, update references

docs/terminal/ghostty.mdx

@@ -17,10 +17,10 @@ Ghostty reads both `config` and `config.ghostty`. `config` holds all settings; `
 
 | Option | Value |
 | --- | --- |
-| `font-family` / `font-size` | `Victor Mono NF` / `12.5` |
+| `font-family` / `font-size` | `Victor Mono NF` / `13` |
 | `background-opacity` / `background-blur` | `0.9` / `true` |
 | `window-decoration` | `false`; `gtk-titlebar = false` |
-| `window-padding-x/y` | `12` |
+| `window-padding-x/y` | `0` (bezelless: text runs to the window edge) |
 | `cursor-style` | `underline`, blinking |
 | `scrollback-limit` | `3023` |
 | `mouse-hide-while-typing` | `true` |
@@ -28,6 +28,7 @@ Ghostty reads both `config` and `config.ghostty`. `config` holds all settings; `
 | `confirm-close-surface` | `false` |
 | `app-notifications` | `no-clipboard-copy,no-config-reload` |
 | `quit-after-last-window-closed` | `false`, delay `5m` |
+| `command` | `tmux new-session -A -s main` (every window and tab attaches to tmux session `main`, creating it when missing) |
 | `shell-integration` | `detect`, features `cursor,sudo,title,no-cursor` |
 | `gtk-single-instance` | `true` |