chore: better scripts and dev dependencies also activeTextStyle prop …

…is back

chore: bump version to 2.1.0

chore: example updated

docs: README

feat: 1.1.0 version with the RTL support and matches with iOS Design Kit

feat: extraSpacing for animation

refactor: make it available to set active text color with custom text…

… color

feat: selectedTabStyle is available with the 1.0.0 version

docs: README is updated