Ayu-mirage: current issues with theme.

[Icy-Thought]

What happened?

(Ayu-mirage)

1. Wrong colorscheme while in terminal mode.
   

2. Bright colors for org-code blocks. (fixed in: Improved color for the Ayu themes #638)

   Why mention this PR? Maybe we could use the same colors for highlighting items while searching through SPC-f-r.

3. No highlight color in ivy which makes it impossible to tell what you are highlighting unless you are tracking your steps mentally or searching for the filename specifically.

   Browsing recent files: (SPC-f-r)
   

   Filename searching: (SPC-f-r)
   

What did you expect to happen?

Colorscheme to work in terminal mode like it does in graphical mode + highlight color for easier tracking of what items are being highlighted.

Steps to reproduce

1. SPC-h-t
2. doom-ayu-mirage.
3. SPC-h-r-t

System Information

• Emacs version: 27.2
• Emacs distro: doom-emacs
• Operating system: NixOS
• Installed commit of doom-themes: 9e2680b
• Which theme are you using: doom-ayu-mirage.