Update bower.json to include dependencies

[matriplett]

Bower intall gave me errors for missing dependencies for jQuery and popper.js. I corrected this by updating bower.json file to read:

{ "name": "sage", "homepage": "https://roots.io/sage/", "authors": [ "Ben Word <[e-mail]>" ], "license": "MIT", "private": true, "dependencies": { "bootstrap": "git://github.com/twbs/bootstrap.git#v4.0.0", "popper.js": "^1.12.3" } }

[Igor Buyanov]

Thanks for the heads up, could you please open up a pull request for the fix?

[Igor Buyanov]

Bower is a bit of legacy anyways in the theme. I think most people prefer npm over Bower nowadays.

[Igor Buyanov]

In fact, now that I remember, bootstrap is not included in Bower to be easily installable with npm/yarn.