Removed unnecessary spacing on backend grid

[Bartlomiejsz]

Description (*)

This PR fixes minor issue on backend grid. When there are selected items, there is unnecessary spacing being displayed.
Main change is line 68 - rest is only refactoring.

Related Pull Requests

Fixed Issues (if relevant)

Manual testing scenarios (*)

1. In Backend, go to System -> Tools -> Cache Management
2. Select few rows on grid
3. Make sure there is no spacing in (X selected) phrase
   

Questions or comments

To reproduce this issue, HTML minification probably must be disabled.
I don't think any tests are applicable here.

Contribution checklist (*)

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds are green)

Resolved issues:

1. resolves [Issue] Removed unnecessary spacing on backend grid #38502: Removed unnecessary spacing on backend grid

[m2-assistant]

Hi @Bartlomiejsz. Thank you for your contribution
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[Bartlomiejsz]

@magento run all tests

[ihor-sviziev]

@magento run Functional Tests EE

[magento-engcom-team]

Hi @ihor-sviziev, thank you for the review.
ENGCOM-8977 has been created to process this Pull Request

[engcom-Delta]

@magento create issue

[engcom-Delta]

✔️ QA Passed

Preconditions:

• Install fresh Magento 2.4-develop

Manual testing scenario:

1.In Backend, go to System -> Tools -> Cache Management
2.Select few rows on grid
3.Make sure there is no spacing in (X selected) phrase

Before: ✖️ 

After: ✔️  

Builds are failed. Hence, moving this PR to Extended Testing.

[engcom-Echo]

@magento run all tests

[engcom-Echo]

@magento run all tests

[engcom-Echo]

@magento run WebAPI Tests,Integration Tests,Functional Tests EE,Functional Tests CE,Functional Tests B2B

[engcom-Echo]

Functional Tests B2B,Functional Tests CE,Functional Tests EE failure are different on last two run on same commit. Also they contain known failures.
List of known failures.
ACQE-6523 - AdminReorderWithCatalogPriceRuleDiscountTest
ACQE-6331 - StorefrontCreateOrderAllQuantityGroupedProductOptionDefaultStockTest
ACQE-6487 - StorefrontSelectedByQueryParamsConfigurableOptionsThumbImagesTest
ACQE-6590 - AdminCheckConfigurationForPayPalExpressCheckoutInUnitesStatesTest
ACQE-6423 - ApplyTaxesAndFptForSimpleProductWithCanadianPstOriginTest
ACQE-5677 - StorefrontQuoteCanBeRenamedUntilLockedTest

Functional Tests B2B
Run1

Run2

Functional Tests EE
Run1

Run2

Functional Tests CE
Run1

Run2

Integration Tests and WebAPI Tests contain known failure

Hence moving it to merge in progress