Add changelog, prettier, devDeps

Author: ZachSelindh

.prettierrc.js

@@ -0,0 +1,15 @@
+module.exports = {
+    arrowParens: 'avoid',
+    bracketSpacing: true,
+    jsxBracketSameLine: false,
+    jsxSingleQuote: false,
+    printWidth: 120,
+    quoteProps: 'as-needed',
+    rangeStart: 0,
+    rangeEnd: Infinity,
+    semi: true,
+    singleQuote: true,
+    tabWidth: 4,
+    trailingComma: 'es5',
+    useTabs: false
+}

CHANGELOG.md

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+# react-admin-mui-datepickers Changelog
+
+## September 21st, 2023
+
+-   Imported code from project
+-   npm init