fix(drop): free CString allocations and GFile refs in drag uri handling (#700)

Co-authored-by: hktitof <hktitof@users.noreply.github.com>

server/pkg/drop/drop.c

@@ -82,12 +82,13 @@ char **dragUrisMake(int size) {
 void dragUrisSetFile(char **uris, char *file, int n) {
   GFile *gfile = g_file_new_for_path(file);
   uris[n] = g_file_get_uri(gfile);
+  g_object_unref(gfile);
 }
 
 void dragUrisFree(char **uris, int size) {
   for (int i = 0; i < size; i++) {
-    free(uris[i]);
+    g_free(uris[i]);
   }
 
-  free(uris);
+  g_free(uris);
 }

server/pkg/drop/drop.go

@@ -8,6 +8,8 @@ package drop
 import "C"
 
 import (
+	"unsafe"
+
 	"sync"
 
 	"github.com/kataras/go-events"
@@ -29,7 +31,9 @@ func OpenWindow(files []string) {
 	defer C.dragUrisFree(urisUnsafe, size)
 
 	for i, file := range files {
-		C.dragUrisSetFile(urisUnsafe, C.CString(file), C.int(i))
+		cFile := C.CString(file)
+		C.dragUrisSetFile(urisUnsafe, cFile, C.int(i))
+		C.free(unsafe.Pointer(cFile))
 	}
 
 	C.dragWindowOpen(urisUnsafe)