Create a Search bar component

[nikitabelonogov]

Create a SearchBar component to use in the navigation bar.

• add a container with a borders from all sides(use default decoration color)
• add material icon search
• add input field with placeholder text: type to search...
• add created component to NavBar component created in #48

should look like on mock(without categories and location selectors)

[ooow]

@nikitabelonogov Updated requirements, please, make sure you implementing according to new requirements.