Modal btn layout

[igarashitm]

1569 should go first

fixed broken buttons layout when they are wider than the modal. Here are screenshots from the storybook

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1570 +/- ## ======================================= Coverage ? 80.01% Complexity ? 272 ======================================= Files ? 276 Lines ? 7839 Branches ? 1535 ======================================= Hits ? 6272 Misses ? 1458 Partials ? 109 ```

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[sonarcloud[bot]]

Quality Gate passed

Issues
3 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud