web/Omnibox: improve pasting links from clipboard

- `text/uri-list` type is now accepted (such as clipboard data from bluesky)
- http links are now allowed (such as those from rednote)
- rednote share link is properly extracted

web/src/lib/clipboard.ts

@@ -0,0 +1,17 @@
+const allowedLinkTypes = new Set(["text/plain", "text/uri-list"]);
+
+export const pasteLinkFromClipboard = async () => {
+    const clipboard = await navigator.clipboard.read();
+
+    if (clipboard?.length) {
+        const clipboardItem = clipboard[0];
+        for (const type of clipboardItem.types) {
+            if (allowedLinkTypes.has(type)) {
+                const blob = await clipboardItem.getType(type);
+                const blobText = await blob.text();
+
+                return blobText;
+            }
+        }
+    }
+}