Revert "Use standard icon size"

This reverts commit d6653273717f3b70fba40fb140319a31c64472f5.
Use standart (16x16) icon size for dock tabs
Revert "Fix bug with disappearing handles of Bline-tool when zoom"

This reverts commit b2c0bca34f70b181a81c920ae3f000b4d6d1e675.