fix: correct state name presence check

- Update condition to check for state presence instead of name
- Ensure proper rendering of state badge in city and weather art views

This change improves the logic for displaying the state badge by
checking for the presence of the state object directly, which
prevents potential errors when the state name is not set. It
ensures that the badge is displayed correctly when a state is
associated with a city or weather art.

app/views/cities/show.html.erb

@@ -45,7 +45,7 @@
               <%= link_to cities_path(country: @city.country, state: @city.state, region: @city.country.region), class: "badge badge-lg badge-secondary hover:badge-outline transition-all duration-200" do %>
                 <%= @city.state.name %>
               <% end %>
-            <% elsif @city.state.name.present? %>
+            <% elsif @city.state.present? %>
               <div class="badge badge-lg badge-secondary">
                 <%= @city&.state&.name %>
               </div>

app/views/weather_arts/show.html.erb

@@ -37,7 +37,7 @@
           <%= link_to cities_path(country: @weather_art.city.country, state: @weather_art.city.state, region: @weather_art.city.country.region), class: "badge badge-lg badge-secondary hover:badge-outline transition-all duration-200" do %>
             <%= @weather_art.city.state.name %>
           <% end %>
-        <% elsif @weather_art.city.state.name.present? %>
+        <% elsif @weather_art.city.state.present? %>
           <div class="badge badge-lg badge-secondary">
             <%= @weather_art&.city&.state&.name %>
           </div>