fix(DataTable): update the typings to properly reflect items

[kelsos]

Closes #(issue_number)

[codecov-commenter]

Codecov Report

Attention: 1244 lines in your changes are missing coverage. Please review.

Comparison is base (8215d94) 60.51% compared to head (9873218) 61.42%.
Report is 2 commits behind head on main.

Files	Patch %	Lines
src/components/tables/DataTable.vue	56.50%	107 Missing ⚠️
src/components/cards/Card.stories.ts	0.00%	103 Missing ⚠️
src/components/tables/DataTable.stories.ts	0.00%	94 Missing ⚠️
...onents/forms/auto-complete/AutoComplete.stories.ts	0.00%	87 Missing ⚠️
src/components/overlays/dialog/Dialog.stories.ts	0.00%	81 Missing ⚠️
src/components/chips/Chip.stories.ts	0.00%	78 Missing ⚠️
src/components/steppers/Stepper.stories.ts	0.00%	50 Missing ⚠️
src/theme/index.ts	0.00%	50 Missing ⚠️
src/components/forms/text-area/TextArea.stories.ts	0.00%	39 Missing ⚠️
...onents/buttons/button-group/ButtonGroup.stories.ts	0.00%	36 Missing ⚠️
... and 38 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #181      +/-   ##
==========================================
+ Coverage   60.51%   61.42%   +0.90%     
==========================================
  Files          80       80              
  Lines       13796    14108     +312     
  Branches      462      445      -17     
==========================================
+ Hits         8349     8666     +317     
+ Misses       5447     5442       -5     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[tewshi]

lgtm!