title: Why vim-airline is not showing symbols properly?
body: <p>I am using vim-airline to show status line at the bottom in vim editor.</p>
  
  <p>Below is my .vimrc.local file.</p>
  
  <p><img src="https://i.stack.imgur.com/JFW8W.png" alt="enter image description here"></p>
  
  <p>and here is how my status line looks like.</p>
  
  <p><img src="https://i.stack.imgur.com/GF44J.png" alt="enter image description here"></p>
  
  <p>Why the symbols are not showing properly?</p>