feat: Refactoring climate zone.

Sources/ViewController/MainPage.swift

@@ -11,6 +11,14 @@ struct MainPage<Inner: HTML>: SendableHTMLDocument where Inner: Sendable {
   var head: some HTML {
     meta(.charset(.utf8))
     meta(.name("viewport"), .content("width=device-width, initial-scale=1.0"))
+    meta(.name("author"), .content("Michael Housh and Dustin Cole"))
+    meta(.name("og:site-name"), .content("HVAC-Toolbox"))
+    meta(.name("apple-mobile-web-app-title"), .content("HVAC-Toolbox"))
+    meta(.name("format-detection"), .content("telephone=no"))
+    meta(.name("HandheldFriendly"), .content("True"))
+    meta(.name("MobileOptimized"), .content("320"))
+    meta(.name("keywords"), .content("hvac, HVAC, design, system-design, calculators"))
+    Elementary.title { self.title }
     link(.rel(.stylesheet), .href("/output.css"))
     link(
       .rel(.icon),

Sources/ViewController/Views/FilterPressureDrop.swift

@@ -62,7 +62,7 @@ struct FilterPressureDropForm: HTML, Sendable {
             }
             div {
               InputLabel(for: "climateZone") { "Climate Zone" }
-              Select(for: ClimateZone.self, id: "climateZone") {
+              Select(for: ClimateZone.ZoneType.self, id: "climateZone") {
                 $0.label
               }
             }