Options -Indexes -MultiViews
DirectoryIndex index.html
<FilesMatch "(^\.|\.(?:env|log|bak|ini)$)">
  Require all denied
</FilesMatch>
RewriteEngine On
RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^ - [L]
RewriteRule ^api/ - [R=404,L]
RewriteRule ^ index.html [L]