feat: frontend perf and a11y pass, plus mod visuals, hero main menu, Simple Voice Chat and vanilla chat autocomplete

Frontend:
- replace the i18next stack with a small typed i18n module
- hero clouds removed, llms.txt, HUD widget ARIA fixes and tests

Mod:
- TargetESP constellation mode; tracker and colors extracted
- JumpCircles: 7 new shapes, shared animation and color pipeline
- KillEffect blood mode with Burst/Fountain/Ring/Spray styles
- main menu: menuLayout setting (orbs/hero) and hero screen
- Simple Voice Chat soft integration: VoiceChat module and HUD panel
- renderer/quick: static Draw facade with glass outline
- vanilla chat: Baritone-style autocomplete popup for the % command prefix

mod/config/lovisual/hud/draggable/voicechat.json

@@ -0,0 +1,18 @@
+{
+  "enabled": false,
+  "layout": {
+    "pos": [
+      16.0,
+      150.0
+    ],
+    "space": "logical"
+  },
+  "voicechat_scale": 1.0,
+  "voicechat_layout": "Split Header",
+  "voicechat_max_rows": 6.0,
+  "voicechat_hold_ms": 350.0,
+  "voicechat_show_self": true,
+  "voicechat_bg_alpha": 131.0,
+  "voicechat_bg_effect": "Auto",
+  "voicechat_blur_alpha": 255.0
+}

mod/config/lovisual/mainconfig.json5

@@ -1,20 +1,12 @@
 {
   'debug': 'off',
-  'forcePvp': false,
   'menuBg': 'off',
+  'menuLayout': 'orbs',
   'menuClockShowSeconds': false,
   'menuBgUseTheme': false,
   'msaa3d': 'off',
   'clickGuiModulesHints': true,
   'clickGuiHudEditorHints': true,
-  'inventorySwapPolicy': 'none',
-  'inventorySwapScope': 'full',
-  'inventorySwapVisibility': 'silent',
-  'inventorySwapRestore': true,
-  'inventorySwapPreferHotbar': true,
-  'inventorySwapLegitWaitTicks': 2.0,
-  'inventorySwapStrictInventoryWaitTicks': 1.0,
-  'inventorySwapStrictMovementLockTicks': 2.0,
   'disableNarrator': true,
   'backdoorProtection': true,
   'backdoorTranslationFilter': true,