chore: hanle .*rc as json files (#231)

Author: JounQin

.prettierignore

@@ -1 +1,4 @@
-.env-cmdrc
+.svelte-kit
+.type-coverage
+build
+lib

prettier.config.js

@@ -4,4 +4,13 @@ module.exports = {
   tabWidth: 2,
   semi: false,
   trailingComma: "all",
+  overrides: [
+    {
+      files: [".*rc"],
+      excludeFiles: [".browserslistrc", ".npmrc", ".nvmrc"],
+      options: {
+        parser: "json",
+      },
+    },
+  ],
 }