refactor(input-group): input refinement

[SisIvanova]

Closes #16250

Additional information (check all that apply):

• Bug fix
• New functionality
• Documentation
• Demos
• CI/CD

Checklist:

• All relevant tags have been applied to this PR
• This PR includes unit tests covering all the new code (test guidelines)
• This PR includes API docs for newly added methods/properties (api docs guidelines)
• This PR includes feature/README.MD updates for the feature docs
• This PR includes general feature table updates in the root README.MD
• This PR includes CHANGELOG.MD updates for newly added functionality
• This PR contains breaking changes
• This PR includes ng update migrations for the breaking changes (migrations guidelines)
• This PR includes behavioral changes and the feature specification has been updated with them

[dkoleva-infra]

DateRangePicker - Indigo/Bootstrap/Fluent

The label "to" between the two input fields should be vertically aligned to the inputs not top aligned - all sizes.

[SisIvanova]

DateRangePicker - Indigo/Bootstrap/Fluent

The label "to" between the two input fields should be vertically aligned to the inputs not top aligned - all sizes.

This issue is logged separately and will be fixed in another PR