Fix/select chips behaviour

[andrewcs0901]

Fix Select Chips Behavior

This pull request aims to address some issues with the select chips component, such as:

• Moved the focus on the “element_input” div to input element, which was preventing text selection on the chip
• Fixed the select toggling with every click inside the component
• Fixed a bug where select options would not render when an added item was duplicated
  • Reproduction steps:
    • Add an item, for example: “abc”
    • Add the same item again, “abc” (via click on option or Enter key)
    • Click on the input
    • The select options no longer appear
• Refactored to use handler function thats add new options via click and the Enter key, removing duplicated code