…pe is root (elastic#209978)

Closes elastic/prodfiler#4386

### Summary

The flyout for the root block always contains the hint "Missing symbols
error" because there are no symbols for the root block. We should not
show it here.

### What was done

Added a condition to not render the callout when frameType is root

Before

![image](https://github.com/user-attachments/assets/4856bf40-6753-46bd-a20d-74eebf27533f)

After

Waiting for [this
PR](elastic/elasticsearch#119115) to be merged
for the condition to work

(cherry picked from commit 9e65d7a)

…rame type is root (#209978) (#219964)

# Backport

This will backport the following commits from `main` to `8.19`:
- [[ObsUX][Profiling] Don't render missing symbols callout when frame
type is root (#209978)](#209978)

<!--- Backport version: 9.6.6 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sorenlouv/backport)

<!--BACKPORT
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Don't render missing symbols callout when frame type is root
(#209978)\n\nCloses
https://github.com/elastic/prodfiler/issues/4386\r\n\r\n###
Summary\r\n\r\nThe flyout for the root block always contains the hint
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Don't render missing symbols callout when frame type is
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Don't render missing symbols callout when frame type is root
(#209978)\n\nCloses
https://github.com/elastic/prodfiler/issues/4386\r\n\r\n###
Summary\r\n\r\nThe flyout for the root block always contains the hint
\"Missing symbols\r\nerror\" because there are no symbols for the root
block. We should not\r\nshow it here.\r\n\r\n### What was
done\r\n\r\nAdded a condition to not render the callout when frameType
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Don't render missing symbols callout when frame type is root
(#209978)\n\nCloses
https://github.com/elastic/prodfiler/issues/4386\r\n\r\n###
Summary\r\n\r\nThe flyout for the root block always contains the hint
\"Missing symbols\r\nerror\" because there are no symbols for the root
block. We should not\r\nshow it here.\r\n\r\n### What was
done\r\n\r\nAdded a condition to not render the callout when frameType
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to be merged\r\nfor the condition to
work","sha":"9e65d7a18398877f2721b9b86c69e5fd205e190b"}}]}] BACKPORT-->

Co-authored-by: Miriam <[email protected]>