[docs-infra] Fix Vale config for TypeScript references (#43751)

Author: oliviertassinari

docs/data/material/migration/upgrade-to-v6/migrating-to-pigment-css.md

@@ -255,7 +255,7 @@ Finally, update the `typography.fontFamily` value with the variable created in t
  };
 ```
 
-### Typescript
+### TypeScript
 
 If you are using TypeScript, you need to extend the Pigment CSS theme types with Material UI `Theme`.
 Add the following code to a file that is included in your `tsconfig.json`:

docs/mui-vale.zip

@@ -7,10 +7,10 @@ ignorecase: true
 # for more information: https://vale.sh/docs/topics/styles/#substitution
 swap:
   ' api': API
-  'typescript ': TypeScript
+  typescript: TypeScript
   ' ts': TypeScript
-  ' js': JavaScript
   javascript: JavaScript
+  ' js': JavaScript
   ' css ': CSS
   ' html ': HTML
   NPM: npm # https://css-tricks.com/start-sentence-npm/