Fix VCD datagrid dropdown actions column width

[dpresiana]

PR Checklist

Please check if your PR fulfills the following requirements:

• Tests for the changes have been added (for bug fixes / features)
• Examples have been added / updated (for bug fixes / features)
• Changelog has been updated

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Documentation content changes
• Example website changes
• Version bump
• Other... Please describe:

What does this change do?

Minor fix for datagrid dropdown actions column width in some corner cases when datagrid is empty or the columns are rendered before the grid is populated with data

What manual testing did you do?

Test in the VCD project (no way to test it in the components examples since the issue is a corner case)

Empty state test case steps:

1. Go to Provider Gateway details in the Provider portal with no BGP Community Lists added (should see the empty state)
2. Verify that the column width is normal (38px)

Before	After

Columns rendered before data case steps:

1. Go to Content hub in the Tenant portal
2. Go to Content -> Application Images (this should be opened by default)
3. Switch to see grid view
4. Verify that the column width is normal (38px)

Before	After
https://github.com/vmware/vmware-cloud-director-ui-components/assets/77797592/796c3686-77c0-4ca2-a246-f5957c526459	https://github.com/vmware/vmware-cloud-director-ui-components/assets/77797592/08c42861-989e-4090-85d6-b354d555806f

Does this PR introduce a breaking change?

• Yes
• No

Other information

Bug Number: https://jira.eng.vmware.com/browse/VDU-8198

[vmwclabot]

@dpresiana, you must sign every commit in this pull request acknowledging our Developer Certificate of Origin before your changes are merged. This can be done by adding Signed-off-by: John Doe <[email protected]> to the last line of each Git commit message. The e-mail address used to sign must match the e-mail address of the Git author. Click here to view the Developer Certificate of Origin agreement.

• Commit 42514fb must be signed by [email protected]

[vmwclabot]

@dpresiana, you must sign every commit in this pull request acknowledging our Developer Certificate of Origin before your changes are merged. This can be done by adding Signed-off-by: John Doe <[email protected]> to the last line of each Git commit message. The e-mail address used to sign must match the e-mail address of the Git author. Click here to view the Developer Certificate of Origin agreement.

• Commit 806e550 must be signed by [email protected]