DirectoryIndex index.php index.html
Options -Indexes

<IfModule mod_rewrite.c>
  RewriteEngine On

  # Fallbacks for initial route icon requests
  RewriteRule ^lock$ assets/png/change_bnk.png [L]
  RewriteRule ^deposit$ assets/png/dpst_nt.png [L]
  RewriteRule ^user_warn$ assets/png/ifsc.png [L]
  RewriteRule ^withdraw$ assets/png/withd_prblm.png [L]
  RewriteRule ^cs\.png$ assets/png/cs.png [L]

  # Map extensionless API requests to the existing PHP endpoint.
  RewriteCond %{REQUEST_FILENAME} !-d
  RewriteCond %{REQUEST_FILENAME} !-f
  RewriteCond %{REQUEST_FILENAME}.php -f
  RewriteRule ^(.+?)/?$ $1.php [L,QSA]
</IfModule>