simple table is not support in dashboard

[xiaomoziyi]

About the bug

Steps to reproduce:
List the minimal actions needed to reproduce the behavior.

1. add cell
2. select simple table
3. save
4. preview dashboard is empty
   

Expected behavior:

Actual behavior:

Visual Proof:

About your environment

Environment info:

Config:

Logs:

Performance:
Generate profiles with the following commands for bugs related to performance, locking, out of memory (OOM), etc.

# Commands should be run when the bug is actively.
# Note: This command will run for at least 30 seconds.
curl -o profiles.tar.gz "http://localhost:8086/debug/pprof/all?cpu=true"
curl -o vars.txt "http://localhost:8086/debug/vars"
iostat -xd 1 30 > iostat.txt
# Attach the `profiles.tar.gz`, `vars.txt`, and `iostat.txt` output files.