prompt_prefix character/glyph rendered different size in Ivy layout / different screen widths

[benfrain]

Description

When using prompt_prefix = "  ", (a magnifying glass) the glyph is rendered the wrong size in Ivy. The glyph is also rendered incorrectly on smaller screens with the standard layout.

https://files.gitter.im/5fbbf0d1d73408ce4ff4bde2/qcDP/image.png

https://files.gitter.im/5fbbf0d1d73408ce4ff4bde2/8Xhp/image.png

Neovim version

NVIM v0.7.0
Build type: Release
LuaJIT 2.1.0-beta3
Compiled by brew@Monterey

Features: +acl +iconv +tui
See ":help feature-compile"

   system vimrc file: "$VIM/sysinit.vim"
  fall-back for $VIM: "/usr/local/Cellar/neovim/0.7.0/share/nvim"

Run :checkhealth for more info

Operating system and version

macOS 12.4

checkhealth telescope

telescope: require("telescope.health").check()
========================================================================
## Checking for required plugins
  - OK: plenary installed.
  - OK: nvim-treesitter installed.

## Checking external dependencies
  - OK: rg: found ripgrep 13.0.0
  - OK: fd: found fd 8.3.2

## ===== Installed extensions =====

## Telescope Extension: `file_browser`
  - INFO: No healthcheck provided

## Telescope Extension: `fzf`
  - INFO: No healthcheck provided

## Telescope Extension: `session-lens`
  - INFO: No healthcheck provided

Steps to reproduce

1. Set prompt_prefix = "  ",
2. Try opening files with standard layout, observe icon size
3. Try opening files with Ivy layout, observe icon size
4. Optionally use standard layout but try with wider/thinner Terminal window and observe difference

Expected behavior

Icon/Glyph rendered at consistent size

Actual behavior

Icon/Glyph rendered at varying sizes

Minimal config

vim.cmd [[set runtimepath=$VIMRUNTIME]]
vim.cmd [[set packpath=/tmp/nvim/site]]
local package_root = '/tmp/nvim/site/pack'
local install_path = package_root .. '/packer/start/packer.nvim'
local function load_plugins()
  require('packer').startup {
    {
      'wbthomason/packer.nvim',
      {
        'nvim-telescope/telescope.nvim',
        requires = {
          'nvim-lua/plenary.nvim',
          { 'nvim-telescope/telescope-fzf-native.nvim', run = 'make' },
        },
      },
      -- ADD PLUGINS THAT ARE _NECESSARY_ FOR REPRODUCING THE ISSUE
    },
    config = {
      package_root = package_root,
      compile_path = install_path .. '/plugin/packer_compiled.lua',
      display = { non_interactive = true },
    },
  }
end
_G.load_config = function()
  require('telescope').setup()
  require('telescope').load_extension('fzf')
  -- ADD INIT.LUA SETTINGS THAT ARE _NECESSARY_ FOR REPRODUCING THE ISSUE
end
if vim.fn.isdirectory(install_path) == 0 then
  print("Installing Telescope and dependencies.")
  vim.fn.system { 'git', 'clone', '--depth=1', 'https://github.com/wbthomason/packer.nvim', install_path }
end
load_plugins()
require('packer').sync()
vim.cmd [[autocmd User PackerComplete ++once echo "Ready!" | lua load_config()]]