style(settings): fold the Happ settings into four tabs

Seven tabs, several holding one or two settings, made the page hard to
scan. The encrypted-links switch moves above the tabs under
auto-detection, the colour profile joins the banners under Appearance &
Theme, and Android per-app proxy joins Network & TUN Engine. The QR
modal's settings link no longer needs a happTab selector, and the three
orphaned tab-label keys are dropped from every locale.

internal/web/translation/id-ID.json

@@ -1643,13 +1643,10 @@
       "subHappProxyIPs": "IP / CIDR Proxy",
       "subHappBlockIPs": "IP / CIDR Diblokir",
       "subHappDeeplinkGenerated": "Deeplink dibuat dan diterapkan ke aturan routing",
-      "subHappGroupLinks": "Tautan Langganan",
       "subHappGroupRouting": "Routing & Aturan",
-      "subHappGroupBanners": "Banner & Pengumuman",
       "subHappGroupNetwork": "Jaringan & Mesin TUN",
       "subHappGroupThemes": "Tampilan & Tema",
       "subHappGroupFailover": "Migrasi & Manajemen Aplikasi",
-      "subHappGroupAndroid": "Proxy Per-Aplikasi Android",
       "discordSettings": "Bot Discord",
       "discordBotEnable": "Aktifkan Notifikasi Discord",
       "discordBotEnableDesc": "Kirim peringatan sistem dan acara ke saluran Discord melalui bot",