Scroll buttons are around rows counter

[konyashkina]

From forum https://www.cuba-platform.ru/discuss/t/skroll-schetchika-strok/6477/4

Tested on
CUBA Platform version: 7.2.19
CUBA Studio plugin version: 15.10-213
IntelliJ version: IntelliJ IDEA 2021.3 (Community Edition)

Steps to reproduce:

1. Create new Cuba project or open an existing one.
2. Create an entity.
3. Create browser and editor screens for the entity. Set <rowsCount autoLoad="true"/> in the browse descriptor.
4. Run Cuba app, open it in browser, log in and open the entity browser. Add some records and check that there is no scroll buttons near rows counter.
5. Go back to the studio, remove buttonsPanel section from the browser descriptior. (Hot deploy is triggered successfully.)
6. Go back to browser and check counter area on the page.

ER: There are no scroll buttons around rows counter.
AR: There are vertical scroll buttons near the rows counter.