Bower is depreciated in docs and replaced by yarn

[gustawdaniel]

recommended ways should be npm, yarn or using cdn

Description

...

Check List

instruction : terminal command

• [ ] run the build script grunt
• [ ] open index.html in a browser & resize to test visual issues

[kristoferjoseph]

Hey there! Thanks for the PR. If you want to move from bower to yarn can you also remove the bower.json in this same pull request please?

Thank you kindly