updated htaccess file

.htaccess

@@ -1,3 +1,7 @@
+DirectoryIndex index.php
+
 RewriteEngine on
-RewriteCond $1 !^(index\.php|images|robots\.txt|assets|css|js)
+RewriteCond $1 !^(index\.php|images|robots\.txt|css|js)
-RewriteRule ^(.*)$ ./index.php/$1 [L]
+RewriteCond %{REQUEST_FILENAME} !-f
+RewriteCond %{REQUEST_FILENAME} !-d
+RewriteRule ^(.*)$ ./index.php/$1 [L,QSA]