chore: change contact page copy from "us/we" to "me/I"

More personal and authentic for a solo POD seller:
- "Get in touch" instead of "Contact Us"
- "Drop me a message" instead of "Drop us"
- "I'll get back to you" instead of "we'll"
- "Send a message" instead of "Send us a message"
- "How can I help?" instead of "How can we help?"
- "I'll send you a link" instead of "we'll send"

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

lib/simpleshop_theme_web/components/page_templates/contact.html.heex

@@ -10,8 +10,8 @@
   <main id="main-content" class="max-w-4xl mx-auto px-4 sm:px-6 lg:px-8 py-16">
     <.hero_section
       variant={:page}
-      title="Contact Us"
-      description="Questions about your order or just want to say hello? Drop us a message and we'll get back to you as soon as we can."
+      title="Get in touch"
+      description="Questions about your order or just want to say hello? Drop me a message and I'll get back to you as soon as I can."
     />
 
     <div class="grid gap-8 md:grid-cols-2 mb-12">

lib/simpleshop_theme_web/components/shop_components.ex

@@ -956,7 +956,7 @@ defmodule SimpleshopThemeWeb.ShopComponents do
 
       <.hero_section
         variant={:page}
-        title="Contact Us"
+        title="Get in touch"
         description="Questions about your order?"
       />
 
@@ -964,7 +964,7 @@ defmodule SimpleshopThemeWeb.ShopComponents do
         variant={:error}
         pre_title="404"
         title="Page Not Found"
-        description="Sorry, we couldn't find the page..."
+        description="Sorry, that page doesn't exist..."
         cta_text="Go to Homepage"
         secondary_cta_text="Browse Products"
         mode={:preview}
@@ -1455,17 +1455,16 @@ defmodule SimpleshopThemeWeb.ShopComponents do
 
   ## Attributes
 
-  * `title` - Optional. Form heading. Defaults to "Send us a message".
-  * `email` - Optional. If provided, displays "or email us at [email]" below the title.
-  * `response_time` - Optional. Response time text shown below email (e.g., "We typically respond within 24 hours").
+  * `title` - Optional. Form heading. Defaults to "Send a message".
+  * `email` - Optional. If provided, displays "or email [email]" below the title.
 
   ## Examples
 
       <.contact_form />
       <.contact_form title="Get in touch" />
-      <.contact_form email="hello@example.com" response_time="We typically respond within 24 hours" />
+      <.contact_form email="hello@example.com" />
   """
-  attr :title, :string, default: "Send us a message"
+  attr :title, :string, default: "Send a message"
   attr :email, :string, default: nil
   attr :response_time, :string, default: nil
 
@@ -1522,7 +1521,7 @@ defmodule SimpleshopThemeWeb.ShopComponents do
           </label>
           <input
             type="text"
-            placeholder="How can we help?"
+            placeholder="How can I help?"
             class="w-full px-4 py-2"
             style="background-color: var(--t-surface-base); color: var(--t-text-primary); border: 1px solid var(--t-border-default); border-radius: var(--t-radius-input);"
           />
@@ -1567,7 +1566,7 @@ defmodule SimpleshopThemeWeb.ShopComponents do
     >
       <h3 class="font-bold mb-3" style="color: var(--t-text-primary);">Track your order</h3>
       <p class="text-sm mb-3" style="color: var(--t-text-secondary);">
-        Enter your email and we'll send you a link to check your order status.
+        Enter your email and I'll send you a link to check your order status.
       </p>
       <div class="flex flex-wrap gap-2">
         <input