Update SubmissionsTable.vue

[timisenco2015]

Description

I moved this line on code "this.showColumnsDialog = false" to the first line in the method so that the select column dialog box will close faster.

Types of changes

Bug fix (non-breaking change which fixes an issue)

Checklist

• I have read the CONTRIBUTING doc
• I have checked that unit tests pass locally with my changes
• I have run the npm script lint on the frontend and backend
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)
• I have approval from the product owner for the contribution in this pull request

Further comments

[github-actions]

Coverage Report (Application)

Totals
Statements:	40.36% ( 2369 / 5870 )
Methods:	35.46% ( 295 / 832 )
Lines:	46.3% ( 1613 / 3484 )
Branches:	29.67% ( 461 / 1554 )

[github-actions]

Coverage Report (Frontend)

Totals
Statements:	70.03% ( 1054 / 1505 )
Methods:	66.9% ( 188 / 281 )
Lines:	74.42% ( 736 / 989 )
Branches:	55.32% ( 130 / 235 )