Add js_reloader.erl to frontend template definition

- Include js_reloader.erl in arizona.frontend.template file list
- Ensures JS reloader module is created when generating new projects
- Fixes missing template entry for JavaScript hot-reloading functionality

Author: williamthome

priv/templates/arizona.frontend.template

@@ -26,6 +26,7 @@
 {template, "arizona.frontend/src/app.src", "{{name}}/src/{{name}}.app.src"}.
 {template, "arizona.frontend/src/app.erl", "{{name}}/src/{{name}}_app.erl"}.
 {template, "arizona.frontend/src/css_reloader.erl", "{{name}}/src/{{name}}_css_reloader.erl"}.
+{template, "arizona.frontend/src/js_reloader.erl", "{{name}}/src/{{name}}_js_reloader.erl"}.
 {template, "arizona.frontend/src/layout.erl", "{{name}}/src/{{name}}_layout.erl"}.
 {template, "arizona.frontend/src/view.erl", "{{name}}/src/{{name}}_view.erl"}.
 {template, "arizona.frontend/src/sup.erl", "{{name}}/src/{{name}}_sup.erl"}.