feat: sync all remaining python source board configurations

mixly/boards/default_src/python_mixpy/webpack.common.js

@@ -0,0 +1,11 @@
+const path = require("path");
+const common = require("../../../webpack.common");
+const { merge } = require("webpack-merge");
+
+module.exports = merge(common, {
+    resolve: {
+        alias: {
+            '@mixly/python': path.resolve(__dirname, '../python')
+        }
+    }
+});