Update cmd + K search to Hotkeys

[danpastori]

Steps To Reproduce

Run cmd + k to search in Firefox

Outcome

Should bring up the search box within the docs

Affected Docker Images

N/A

Anything else?

Problem
cmd + K in Firefox jumps to the search bar within the browser and not within Docker PHP

Solution
https://github.com/jaywcjlove/hotkeys-js

Utilizing hotkeys.js can prevent the default commands from running scoping the cmd + k to Docker PHP. We should also support ctrl + k for Windows machines