[examples] fix lint errors, update package name, remove unnecessary res statement

examples/with-mysql/package.json

 {
-  "name": "with-tailwindcss",
+  "name": "with-mysql",
   "version": "1.0.0",
   "scripts": {
     "dev": "next",

examples/with-mysql/pages/api/create-entry.ts

-import Filter from "bad-words";
-import { query, db } from "../../lib/db";
+import Filter from 'bad-words'
+import { query } from '../../lib/db'
 
-const filter = new Filter();
+const filter = new Filter()
 
-export default async (req, res) => {
-  const { title, content } = req.body;
+const handler = async (req, res) => {
+  const { title, content } = req.body
   try {
     if (!title || !content) {
       return res
         .status(400)
-        .json({ message: "`title` and `content` are both required" });
+        .json({ message: '`title` and `content` are both required' })
     }
 
     const results = await query(
@@ -18,11 +18,12 @@ export default async (req, res) => {
       VALUES (?, ?)
       `,
       [filter.clean(title), filter.clean(content)]
-    );
+    )
 
-    return res.json(results);
+    return res.json(results)
   } catch (e) {
-    res.status(500).json({ message: e.message });
+    res.status(500).json({ message: e.message })
   }
-  res.end("hi");
-};
+}
+
+export default handler

examples/with-mysql/pages/api/edit-entry.ts

 import Filter from 'bad-words'
-import { query, db } from "../../lib/db";
+import { query } from '../../lib/db'
 
 const filter = new Filter()
 
-export default async (req, res) => {
-  const { id, title, content } = req.body;
+const handler = async (req, res) => {
+  const { id, title, content } = req.body
   try {
     if (!id || !title || !content) {
       return res
         .status(400)
-        .json({ message: "`id`,`title`, and `content` are all required" });
+        .json({ message: '`id`,`title`, and `content` are all required' })
     }
 
     const results = await query(
@@ -19,11 +19,12 @@ export default async (req, res) => {
       WHERE id = ?
       `,
       [filter.clean(title), filter.clean(content), id]
-    );
+    )
 
-    return res.json(results);
+    return res.json(results)
   } catch (e) {
-    res.status(500).json({ message: e.message });
+    res.status(500).json({ message: e.message })
   }
-  res.end("hi");
-};
+}
+
+export default handler

examples/with-mysql/pages/api/get-entry.ts

-import { query } from "../../lib/db";
+import { query } from '../../lib/db'
 
-export default async (req, res) => {
-  const { id } = req.query;
+const handler = async (req, res) => {
+  const { id } = req.query
   try {
     if (!id) {
-      return res.status(400).json({ message: "`id` required" });
+      return res.status(400).json({ message: '`id` required' })
     }
-    if (typeof parseInt(id) !== "number") {
-      return res.status(400).json({ message: "`id` must be a number" });
+    if (typeof parseInt(id) !== 'number') {
+      return res.status(400).json({ message: '`id` must be a number' })
     }
     const results = await query(
       `
@@ -16,10 +16,12 @@ export default async (req, res) => {
       WHERE id = ?
     `,
       id
-    );
+    )
 
-    return res.json(results[0]);
+    return res.json(results[0])
   } catch (e) {
-    res.status(500).json({ message: e.message });
+    res.status(500).json({ message: e.message })
   }
-};
+}
+
+export default handler