feat(browser): rework element annotation and picker toolbar

Element annotation is now free-text: dropped the Fix/Change/Question/
Approve intent pills and the intent field, so the user just says what
they want. The card uses the shared Button and is titled "Annotate
element".

Toolbar: the element picker and DevTools are no longer dev-gated and
work in prod; DevTools uses a wrench icon, and the old clipboard "grab"
is now a Camera "Screenshot element" tool. Each toolbar button
highlights only its own mode, and the copy toast reflects whether a
screenshot image was actually captured.

packages/app/src/i18n/resources/ar.ts

@@ -422,22 +422,17 @@ export const ar: TranslationResources = {
         enterUrl: "أدخل URL",
         openDevTools: "افتح أدوات تطوير المتصفح",
         cancelSelector: "إلغاء محدد العنصر",
-        selectElement: "حدد العنصر",
-        grabElement: "نسخ العنصر إلى الحافظة",
-        grabElementLabel: "العنصر",
-        grabFailed: "تعذّر نسخ العنصر",
+        annotateElement: "التعليق على العنصر",
+        screenshotElement: "لقطة للعنصر",
+        screenshotCopied: "تم نسخ لقطة الشاشة إلى الحافظة",
+        elementCopied: "تم نسخ العنصر إلى الحافظة",
+        screenshotFailed: "تعذّر نسخ لقطة الشاشة",
       },
       annotate: {
-        title: "إرسال ملاحظات إلى الوكيل",
-        placeholder: "صف ما الذي ينبغي تغييره…",
+        title: "التعليق على العنصر",
+        placeholder: "رسالة إلى الوكيل حول هذا العنصر…",
         submit: "إرفاق",
         cancel: "إلغاء",
-        intents: {
-          fix: "إصلاح",
-          change: "تغيير",
-          question: "سؤال",
-          approve: "موافقة",
-        },
       },
       devices: {
         label: "حجم الجهاز",