fixes + theme

public/plugins/chat/chat.js

@@ -235,14 +235,31 @@ async function sendMessage(e) {
             body: { peer: currentPeer, body },
         });
         if (!res.ok) {
-            alert('Send failed: ' + (res.error || 'unknown'));
+            const detail = [
+                res.error || 'unknown',
+                res.url ? `URL: ${res.url}` : null,
+                res.response_body ? `Body: ${res.response_body}` : null,
+            ].filter(Boolean).join('\n');
+            await hyprcrd.dialog.show({
+                title: 'send failed',
+                message: detail,
+                danger: true,
+                okLabel: 'Ok',
+                cancelLabel: '',
+            });
             return;
         }
         input.value = '';
         await loadThread(currentPeer);
         await loadConversations();
     } catch (err) {
-        alert('Send error: ' + err.message);
+        await hyprcrd.dialog.show({
+            title: 'send error',
+            message: String(err?.message || err),
+            danger: true,
+            okLabel: 'Ok',
+            cancelLabel: '',
+        });
     } finally {
         sendBtn.disabled = false;
         input.disabled = false;