fix: add tstyche to npm dictionary (#3778)

dictionaries/npm/src/npm.txt

@@ -1,6 +1,7 @@
 # This is a list of some of the top (and not so top) packages at https://npmjs.com
 # This should only include NPM packages. Please put other terms in another location.
 # To add a new packages, just add it after this line, it wil get automatically sorted.
+tstyche
 @11ty/eleventy
 @adobe/css-tools
 @adonisjs/core