Open the info screen with Enter and move edit into it

Enter on a guest now opens its info screen, replacing i. The guest
table shows Enter as "Info" in the footer. A priority binding at app
level would have taken Enter away from buttons and lists in the
dialogs, so the hint comes from the table's own binding instead.

Editing cores, memory and disk moved from the main screen into the
info screen (key e). When the edit dialog closes, you are back on the
info screen. Test helpers that pressed i or e on the main screen now
go through Enter, because the requirement changed.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

README.md

@@ -19,9 +19,10 @@ uv run cv4pve-tui
 | `S` | shutdown (confirm) |
 | `x` | stop - hard power-off (confirm) |
 | `r` | reboot (confirm) |
-| `e` | edit cores / memory / grow a disk (disk growth asks again; it cannot be undone) |
-| `i` | info: backups, backup job, network (config and runtime IPs); `b` there = backup now (snapshot, zstd, storage choice); `a` there = also show backups of earlier guests that had the same VMID |
-| `i` then `n` | in info: edit network (bridge, VLAN, firewall, IPv4/IPv6; VM IP via cloud-init at next boot); `u` there = undo the last network change of this guest (this session only) |
+| `Enter` | info: backups, backup job, network (config and runtime IPs) |
+| `Enter` then `e` | in info: edit cores / memory / grow a disk (disk growth asks again; it cannot be undone) |
+| `Enter` then `b` | in info: backup now (snapshot, zstd, storage choice); `a` there = also show backups of earlier guests that had the same VMID |
+| `Enter` then `n` | in info: edit network (bridge, VLAN, firewall, IPv4/IPv6; VM IP via cloud-init at next boot); `u` there = undo the last network change of this guest (this session only) |
 | `t` | shell in a running LXC container (`ssh -t root@<node> pct enter <vmid>`) |
 | `g` | refresh |
 | `c` | switch cv4pve-cli context (cluster) |