docs: Link to the SQL-based visualization docs (#1965)

## Summary

This PR updates the link for macros documentation in the SQL-based chart instructions component to target the new ClickStack [SQL-based Charts docs](https://clickhouse.com/docs/use-cases/observability/clickstack/dashboards/sql-visualizations).

### Screenshots or video

<img width="1453" height="552" alt="Screenshot 2026-03-23 at 8 34 59 AM" src="https://github.com/user-attachments/assets/8706c751-6703-4180-a6ae-39422319637c" />

### How to test locally or on Vercel

This link can be tested in vercel preview.

### References



- Linear Issue:
- Related PRs:
Co-authored-by: peter-leonov-ch <209667683+peter-leonov-ch@users.noreply.github.com>

Author: pulpdrew

.changeset/spicy-toes-prove.md

@@ -0,0 +1,5 @@
+---
+"@hyperdx/app": patch
+---
+
+docs: Link to the SQL-based visualization docs

packages/app/src/components/ChartEditor/RawSqlChartEditor.tsx

@@ -159,10 +159,7 @@ export default function RawSqlChartEditor({
           placeholder="None"
         />
       </Group>
-      <RawSqlChartInstructions
-        displayType={displayType ?? DisplayType.Table}
-        isDashboardForm={isDashboardForm}
-      />
+      <RawSqlChartInstructions displayType={displayType ?? DisplayType.Table} />
       <Box style={{ position: 'relative' }}>
         <SQLEditorControlled
           control={control}

packages/app/src/components/ChartEditor/RawSqlChartInstructions.tsx

@@ -59,10 +59,8 @@ function ParamSnippet({
 
 export function RawSqlChartInstructions({
   displayType,
-  isDashboardForm,
 }: {
   displayType: DisplayType;
-  isDashboardForm: boolean;
 }) {
   const [helpOpened, setHelpOpened] = useAtom(helpOpenedAtom);
   const toggleHelp = () => setHelpOpened(v => !v);
@@ -117,12 +115,12 @@ export function RawSqlChartInstructions({
               </List.Item>
               <List.Item>
                 <Text size="xs">
-                  Macros from the{' '}
+                  Other available macros are described in the{' '}
                   <Anchor
-                    href="https://github.com/grafana/clickhouse-datasource?tab=readme-ov-file#macros"
+                    href="https://clickhouse.com/docs/use-cases/observability/clickstack/dashboards/sql-visualizations"
                     target="_blank"
                   >
-                    ClickHouse Datasource Grafana Plugin
+                    ClickStack documentation.
                   </Anchor>
                 </Text>
               </List.Item>