change id in panel_item

[mhallal1]

While doing this insightsengineering/teal.modules.general#496, I realized that the id on the div should be one place higher.
@Polkas confirmed the point.

[github-actions]

Code Coverage Summary

Filename                   Stmts    Miss  Cover    Missing
-----------------------  -------  ------  -------  ----------------------------------------------------------
R/basic_table_args.R          23       0  100.00%
R/draggable_buckets.R         82      82  0.00%    44-139
R/get_dt_rows.R               13      13  0.00%    27-39
R/ggplot2_args.R              49       0  100.00%
R/include_css_js.R             7       1  85.71%   17
R/optionalInput.R            218     185  15.14%   78-353, 405, 440, 444, 448, 450, 456, 471-484
R/panel_group.R               89      89  0.00%    12-130
R/plot_with_settings.R       382      24  93.72%   271-284, 306, 343-344, 355-356, 365-366, 610-611, 613, 615
R/standard_layout.R           40       0  100.00%
R/table_with_settings.R      171      51  70.18%   85, 99-111, 184, 191-203, 209, 212-228, 230-235
R/utils.R                      4       1  75.00%   7
R/verbatim_popup.R            96      47  51.04%   67-86, 99, 122-150, 171
R/white_small_well.R           7       7  0.00%    18-24
TOTAL                       1181     500  57.66%

Diff against main

Filename    Stmts    Miss    Cover
----------  -------  ------  -------
TOTAL       -        -       -

Results for commit: 768a476

Minimum allowed coverage is 80%

♻️ This comment has been updated with latest results

[github-actions]

Unit Tests Summary

    1 files      9 suites   9s ⏱️
  88 tests   86 ✔️ 2 💤 0 ❌
175 runs  173 ✔️ 2 💤 0 ❌

Results for commit c58ef17.

♻️ This comment has been updated with latest results.

[Polkas]

LGTM