fix: Markdown table rendering for nestjs integrations (#14123)

Markdown table formatting was corrected in
`platform-includes/configuration/integrations/javascript.nestjs.mdx`.
The changes addressed rendering issues caused by misaligned columns and
extra pipe characters.

Specifically:
* The table header separator row was adjusted by removing an extraneous
`| --- |` to align with a 5-column structure.
* The `supabaseIntegration` row was modified to remove an extra, empty
column.
* The checkmark in the `unleashIntegration` row was relocated to the
correct "Additional Context" column, resolving its placement in an
unintended extra column.

These adjustments ensure the table consistently renders with five
columns: "Integration name", "Auto Enabled", "Errors", "Tracing", and
"Additional Context", improving readability and visual alignment.

Co-authored-by: Cursor Agent <cursoragent@cursor.com>

Author: codyde

platform-includes/configuration/integrations/javascript.nestjs.mdx

@@ -1,7 +1,7 @@
 ### Integrations
 
 |                                                           | **Auto Enabled** | **Errors** | **Tracing** | **Additional Context** |
-| --------------------------------------------------------- | :--------------: | :--------: | :---------: | :--------------------: | --- |
+| --------------------------------------------------------- | :--------------: | :--------: | :---------: | :--------------------: |
 | [`amqplibIntegration`](./amqplib)                         |        ✓         |            |      ✓      |                        |
 | [`consoleIntegration`](./console)                         |        ✓         |            |             |           ✓            |
 | [`contextLinesIntegration`](./contextlines)               |        ✓         |     ✓      |             |                        |
@@ -39,6 +39,6 @@
 | [`localVariablesIntegration`](./localvariables)           |                  |     ✓      |             |                        |
 | [`nodeProfilingIntegration`](./nodeprofiling)             |                  |            |      ✓      |                        |
 | [`rewriteFramesIntegration`](./rewriteframes)             |                  |     ✓      |             |                        |
-| [`supabaseIntegration`](./supabase)                       |                  |     ✓      |      ✓      |                        |     |
+| [`supabaseIntegration`](./supabase)                       |                  |     ✓      |      ✓      |                        |
 | [`trpcMiddleware`](./trpc)                                |                  |     ✓      |      ✓      |           ✓            |
-| [`unleashIntegration`](./unleash)                         |                  |            |             |                        | ✓   |
+| [`unleashIntegration`](./unleash)                         |                  |            |             |           ✓            |