chore: Bring in additional checks for oxlint

.oxlintrc.json

@@ -3,11 +3,23 @@
   "plugins": ["typescript", "react", "import"],
   "rules": {
     "no-unused-vars": "warn",
+    "no-shadow": "warn",
+    "no-empty-function": "warn",
     "unicorn/no-thenable": "off",
     "react/exhaustive-deps": "warn",
+    "react/prefer-es6-class": "error",
+    "react/self-closing-comp": "error",
+    "react/jsx-filename-extension": [
+      "warn",
+      {
+        "extensions": [".mdx", ".jsx", ".tsx"]
+      }
+    ],
+    "import/first": "warn",
     "import/no-duplicates": "warn",
     "sort-imports": "off",
-    "typescript/no-floating-promises": "error"
+    "typescript/no-floating-promises": "error",
+    "typescript/switch-exhaustiveness-check": "warn"
   },
   "ignorePatterns": [
     "build/",

packages/browser-sdk/example/feedback/Feedback.jsx

@@ -72,7 +72,7 @@ export const FeedbackForm = () => {
       <div>
         <label>
           <div>Comment</div>
-          <textarea name="comment" placeholder="Write a comment..."></textarea>
+          <textarea name="comment" placeholder="Write a comment..." />
         </label>
       </div>
 

packages/openfeature-browser-provider/example/components/Context.tsx

@@ -28,7 +28,7 @@ export const Context = () => {
         className="min-h-[200px]"
         value={context}
         onChange={(e) => setContext(e.target.value)}
-      ></textarea>
+      />
       <button
         disabled={!validJson}
         className="border-solid m-auto max-w-60 border-2 border-indigo-600 rounded-lg p-2 mt-4 disabled:opacity-50"

packages/react-sdk/dev/plain/app.tsx

@@ -82,7 +82,7 @@ function UpdateContext() {
               <textarea
                 value={newCompany}
                 onChange={(e) => setNewCompany(e.target.value)}
-              ></textarea>
+              />
             </td>
             <td>
               <button onClick={() => updateCompany(JSON.parse(newCompany))}>
@@ -95,7 +95,7 @@ function UpdateContext() {
               <textarea
                 value={newUser}
                 onChange={(e) => setNewUser(e.target.value)}
-              ></textarea>
+              />
             </td>
             <td>
               <button onClick={() => updateUser(JSON.parse(newUser))}>
@@ -108,7 +108,7 @@ function UpdateContext() {
               <textarea
                 value={newOtherContext}
                 onChange={(e) => setNewOtherContext(e.target.value)}
-              ></textarea>
+              />
             </td>
             <td>
               <button