Fix #15 and #17, script crashing application (#16)

* Fix #5, `script` crashing application

* removed unused import

* style

Author: neroist

webui.nim

@@ -7,8 +7,6 @@
   See: https://neroist.github.io/webui-docs/
 ]##
 
-import std/strutils
-
 from webui/bindings import nil
 
 type
@@ -256,9 +254,9 @@ proc script*(window: Window; script: string; timeout: int = 0, bufferLen: static
   var buffer: array[bufferLen, char]
 
   let 
-    error = bindings.script(csize_t window, cstring script, csize_t timeout, cast[cstring](addr buffer), csize_t bufferLen)
+    error = bindings.script(csize_t window, cstring script, csize_t timeout, cast[cstring](addr buffer[0]), csize_t bufferLen)
 
-    data = buffer.join().strip(leading = false, chars = {'\x00'}) # remove trailing null chars
+    data = $(cast[cstring](addr buffer[0])) # remove trailing null chars
 
   result.data = data
   result.error = not error