Migrate to oxfmt (#71)

.oxfmtrc.json

@@ -0,0 +1,35 @@
+{
+  "printWidth": 100,
+  "singleQuote": true,
+  "trailingComma": "es5",
+  "importOrder": [
+    ".*styles.css$",
+    "",
+    "dayjs",
+    "^react$",
+    "^next$",
+    "^next/.*$",
+    "<BUILTIN_MODULES>",
+    "<THIRD_PARTY_MODULES>",
+    "^@mantine/(.*)$",
+    "^@mantinex/(.*)$",
+    "^@mantine-tests/(.*)$",
+    "^@docs/(.*)$",
+    "^@/.*$",
+    "^../(?!.*\\.css$).*$",
+    "^./(?!.*\\.css$).*$",
+    "\\.module\\.css$",
+    "(?<!\\.module)\\.css$"
+  ],
+  "sortPackageJson": false,
+  "ignorePatterns": [
+    "*.d.ts",
+    "*.mdx",
+    "*.md",
+    "packages/*/*/styles.css",
+    "packages/*/*/styles.layer.css",
+    "packages/*/*/styles/*.css",
+    "docs/.next",
+    "docs/out"
+  ]
+}