fix(guard): fix template assigns (#598)

## 📝 Description
Fix the parameter passing to the guard HTML templates

## ✅ Checklist
- [x] I have tested this change
- [ ] This change requires documentation update

Author: skipi

guard/templates/login.html.eex

@@ -41,12 +41,12 @@
       <meta name="twitter:data1" content="1 minute" />
       <meta name="twitter:label2" content="Written by" />
       <meta name="twitter:data2" content="Semaphore Team" />
-      <% if @assigns[:posthog_api_key] && @assigns[:posthog_api_key] != "" do %>
+      <%= if assigns[:posthog_api_key] && assigns[:posthog_api_key] != "" do %>
       <script>
         !function(t,e){var o,n,p,r;e.__SV||(window.posthog=e,e._i=[],e.init=function(i,s,a){function g(t,e){var o=e.split(".");2==o.length&&(t=t[o[0]],e=o[1]),t[e]=function(){t.push([e].concat(Array.prototype.slice.call(arguments,0)))}}(p=t.createElement("script")).type="text/javascript",p.crossOrigin="anonymous",p.async=!0,p.src=s.api_host.replace(".i.posthog.com","-assets.i.posthog.com")+"/static/array.js",(r=t.getElementsByTagName("script")[0]).parentNode.insertBefore(p,r);var u=e;for(void 0!==a?u=e[a]=[]:a="posthog",u.people=u.people||[],u.toString=function(t){var e="posthog";return"posthog"!==a&&(e+="."+a),t||(e+=" (stub)"),e},u.people.toString=function(){return u.toString(1)+".people (stub)"},o="init Ce js Ls Te Fs Ds capture Ye calculateEventProperties Us register register_once register_for_session unregister unregister_for_session Ws getFeatureFlag getFeatureFlagPayload isFeatureEnabled reloadFeatureFlags updateEarlyAccessFeatureEnrollment getEarlyAccessFeatures on onFeatureFlags onSurveysLoaded onSessionId getSurveys getActiveMatchingSurveys renderSurvey displaySurvey canRenderSurvey canRenderSurveyAsync identify setPersonProperties group resetGroups setPersonPropertiesForFlags resetPersonPropertiesForFlags setGroupPropertiesForFlags resetGroupPropertiesForFlags reset get_distinct_id getGroups get_session_id get_session_replay_url alias set_config startSessionRecording stopSessionRecording sessionRecordingStarted captureException loadToolbar get_property getSessionProperty Bs zs createPersonProfile Hs Ms Gs opt_in_capturing opt_out_capturing has_opted_in_capturing has_opted_out_capturing get_explicit_consent_status is_capturing clear_opt_in_out_capturing Ns debug L qs getPageViewId captureTraceFeedback captureTraceMetric".split(" "),n=0;n<o.length;n++)g(u,o[n]);e._i.push([i,s,a])},e.__SV=1)}(document,window.posthog||[]);
 
-        posthog.init('<%= @assigns[:posthog_api_key] %>', {
-          api_host: '<%= @assigns[:posthog_host] %>',
+        posthog.init('<%= assigns[:posthog_api_key] %>', {
+          api_host: '<%= assigns[:posthog_host] %>',
           defaults: '2025-05-24',
           person_profiles: 'identified_only'
         });

guard/templates/signup.html.eex

@@ -44,12 +44,12 @@
     <meta name="twitter:data1" content="1 minute">
     <meta name="twitter:label2" content="Written by">
     <meta name="twitter:data2" content="Semaphore Team">
-    <% if @assigns[:posthog_api_key] && @assigns[:posthog_api_key] != "" do %>
+    <%= if assigns[:posthog_api_key] && assigns[:posthog_api_key] != "" do %>
     <script>
       !function(t,e){var o,n,p,r;e.__SV||(window.posthog=e,e._i=[],e.init=function(i,s,a){function g(t,e){var o=e.split(".");2==o.length&&(t=t[o[0]],e=o[1]),t[e]=function(){t.push([e].concat(Array.prototype.slice.call(arguments,0)))}}(p=t.createElement("script")).type="text/javascript",p.crossOrigin="anonymous",p.async=!0,p.src=s.api_host.replace(".i.posthog.com","-assets.i.posthog.com")+"/static/array.js",(r=t.getElementsByTagName("script")[0]).parentNode.insertBefore(p,r);var u=e;for(void 0!==a?u=e[a]=[]:a="posthog",u.people=u.people||[],u.toString=function(t){var e="posthog";return"posthog"!==a&&(e+="."+a),t||(e+=" (stub)"),e},u.people.toString=function(){return u.toString(1)+".people (stub)"},o="init Ce js Ls Te Fs Ds capture Ye calculateEventProperties Us register register_once register_for_session unregister unregister_for_session Ws getFeatureFlag getFeatureFlagPayload isFeatureEnabled reloadFeatureFlags updateEarlyAccessFeatureEnrollment getEarlyAccessFeatures on onFeatureFlags onSurveysLoaded onSessionId getSurveys getActiveMatchingSurveys renderSurvey displaySurvey canRenderSurvey canRenderSurveyAsync identify setPersonProperties group resetGroups setPersonPropertiesForFlags resetPersonPropertiesForFlags setGroupPropertiesForFlags resetGroupPropertiesForFlags reset get_distinct_id getGroups get_session_id get_session_replay_url alias set_config startSessionRecording stopSessionRecording sessionRecordingStarted captureException loadToolbar get_property getSessionProperty Bs zs createPersonProfile Hs Ms Gs opt_in_capturing opt_out_capturing has_opted_in_capturing has_opted_out_capturing get_explicit_consent_status is_capturing clear_opt_in_out_capturing Ns debug L qs getPageViewId captureTraceFeedback captureTraceMetric".split(" "),n=0;n<o.length;n++)g(u,o[n]);e._i.push([i,s,a])},e.__SV=1)}(document,window.posthog||[]);
 
-      posthog.init('<%= @assigns[:posthog_api_key] %>', {
-        api_host: '<%= @assigns[:posthog_host] %>',
+      posthog.init('<%= assigns[:posthog_api_key] %>', {
+        api_host: '<%= assigns[:posthog_host] %>',
         defaults: '2025-05-24',
         person_profiles: 'identified_only'
       });