refactor: turn logos extensions from svg to js

Author: woothu

src/assets/icons/index.js

@@ -0,0 +1,9 @@
+import { sygnet } from './sygnet'
+import { logo } from './logo'
+import { logoNegative } from './logo-negative'
+
+export {
+  sygnet,
+  logo,
+  logoNegative
+}