Fix install generator for typescript setups

Author: Andy9822

lib/generators/inertia/install/install_generator.rb

@@ -125,6 +125,11 @@ def install_typescript
           return
         end
 
+        if typescript? && application_layout.read.include?("<%= vite_javascript_tag 'application' %>")
+          say 'Updating Vite tag on application layout to use TypeScript'
+          gsub_file application_layout.to_s, /<%= vite_javascript_tag 'application' %>/, '<%= vite_typescript_tag "application" %>'
+        end
+
         add_dependencies(*FRAMEWORKS[framework]['packages_ts'])
 
         say 'Copying adding scripts to package.json'

spec/generators/install/install_generator_spec.rb

@@ -232,8 +232,10 @@ def expect_inertia_prepared_for(framework, ext: 'js')
       file('app/views/layouts/application.html.erb') do
         if ext == 'ts'
           contains('<%= vite_typescript_tag "inertia" %>')
+          contains('<%= vite_typescript_tag "application" %>')
         else
           contains('<%= vite_javascript_tag "inertia" %>')
+          contains("<%= vite_javascript_tag 'application' %>")
         end
         if framework == :react
           contains('<%= vite_react_refresh_tag %>')