feat: Set global.css as main stylesheet

Created styles/global.css and replaced Tailwind's default configuration for using it as the primary stylesheet for the project. This will ensure consistent styles across all pages. Future global styles could mix tailwind classes and css if needed

Author: nsandoya

astro.config.mjs

@@ -12,5 +12,9 @@ import compressor from 'astro-compressor';
 // https://astro.build/config
 export default defineConfig({
   site: "https://ecuadorintech.org",
-  integrations: [tailwind(), alpinejs(), sitemap(), compressor()]
+  integrations: [
+    tailwind({
+      applyBaseStyles: false,
+    }), 
+    alpinejs(), sitemap(), compressor()]
 })