feat : allow taking a screenshot for bug reports (#1678)

This PR implements allowing users to take a screenshot for bug reports
and addresses issue #1125









<!-- This is an auto-generated description by cubic. -->
---
## Summary by cubic
Adds screenshot capture to bug reports. Users can take a screenshot
that’s copied to the clipboard, then continue to file the issue.

- **New Features**
  - New BugScreenshotDialog to take a screenshot or report without one.
- ScreenshotSuccessDialog confirms capture and guides users to the
GitHub issue.
- HelpDialog now opens the screenshot flow; issue template includes an
optional Screenshot section.
- Electron IPC handler take-screenshot captures the focused window and
writes the image to the clipboard; exposed via IpcClient and whitelisted
in preload.

<sup>Written for commit de0f9b059ae508b56c3c46664559eead3dffa413.
Summary will update automatically on new commits.</sup>

<!-- End of auto-generated description by cubic. -->

src/components/ScreenshotSuccessDialog.tsx

@@ -0,0 +1,42 @@
+import { DialogTitle } from "@radix-ui/react-dialog";
+import { Dialog, DialogContent, DialogHeader } from "./ui/dialog";
+import { Button } from "./ui/button";
+import { BugIcon } from "lucide-react";
+
+interface ScreenshotSuccessDialogProps {
+  isOpen: boolean;
+  onClose: () => void;
+  handleReportBug: () => Promise<void>;
+  isLoading: boolean;
+}
+
+export function ScreenshotSuccessDialog({
+  isOpen,
+  onClose,
+  handleReportBug,
+  isLoading,
+}: ScreenshotSuccessDialogProps) {
+  const handleSubmit = async () => {
+    await handleReportBug();
+    onClose();
+  };
+  return (
+    <Dialog open={isOpen} onOpenChange={onClose}>
+      <DialogContent>
+        <DialogHeader>
+          <DialogTitle>
+            Screenshot captured to clipboard! Please paste in GitHub issue.
+          </DialogTitle>
+        </DialogHeader>
+        <Button
+          variant="default"
+          onClick={handleSubmit}
+          className="w-full py-6 border-primary/50 shadow-sm shadow-primary/10 transition-all hover:shadow-md hover:shadow-primary/15"
+        >
+          <BugIcon className="mr-2 h-5 w-5" />{" "}
+          {isLoading ? "Preparing Report..." : "Create GitHub issue"}
+        </Button>
+      </DialogContent>
+    </Dialog>
+  );
+}