API routes to edit and delete custom themes. Added ThemeEditor table

controllers/themes/deleteTheme.js

@@ -0,0 +1,22 @@
+const asyncWrapper = require('../../middleware/asyncWrapper');
+const File = require('../../utils/File');
+
+// @desc      Delete theme
+// @route     DELETE /api/themes/:name
+// @access    Public
+const deleteTheme = asyncWrapper(async (req, res, next) => {
+  const file = new File('data/themes.json');
+  let content = JSON.parse(file.read());
+
+  content.themes = content.themes.filter((t) => t.name != req.params.name);
+  file.write(content, true);
+
+  const userThemes = content.themes.filter((t) => t.isCustom);
+
+  res.status(200).json({
+    success: true,
+    data: userThemes,
+  });
+});
+
+module.exports = deleteTheme;