Run validation in watch mode

Fixes #2584

CHANGELOG.md

@@ -72,6 +72,7 @@
 -   Fixed issue where search results could not be navigated while Windows Narrator was on, #2563.
 -   `charset` is now correctly cased in `<meta>` tag generated by the default theme, #2568.
 -   Fixed very slow conversion on Windows where Msys git was used by typedoc to discover repository links, #2586.
+-   Validation will now be run in watch mode, #2584.
 -   The `--hideParameterTypesInTitle` option no longer applies when rendering function types.
 -   Fixed `externalSymbolLinkMappings` option's support for [meanings](https://typedoc.org/guides/declaration-references/#meaning) in declaration references.
 -   Buttons to copy code now have the `type=button` attribute set to avoid being treated as submit buttons.

src/lib/cli.ts

@@ -73,6 +73,8 @@ async function run(app: td.Application) {
 
     if (app.options.getValue("watch")) {
         app.convertAndWatch(async (project) => {
+            app.validate(project);
+
             const json = app.options.getValue("json");
 
             if (!json || app.options.isSet("out")) {