[Feature] Adding rest of Components & DOM Elements from FTXUI

[vrnimje]

These are the rest of the feasible components and elements from FTXUI, along with other integrations which should be added.

Components

• [X] Radiobox
• [X] Spacious InputOption
• [x] Checkbox

  Elements

• [x] color for border, separator

[vrnimje]

Now need to add documentation for the same, will be done after new website theme is taken care of