add collapseble navbar to improve user experience on phones
add collapseble navbar to improve user experience on phones

Vladk-el/dtpv2,Vladk-el/DameTenebraPhotographyWebsite,Vladk-el/dtpv2,Vladk-el/DameTenebraPhotographyWebsite,Vladk-el/DameTenebraPhotographyWebsite,Vladk-el/dtpv2,Vladk-el/dtpv2,Vladk-el/DameTenebraPhotographyWebsite