Add Ko-fi support section with QR code to About page; v1.1.47

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/content.ts

@@ -200,6 +200,7 @@ export interface SiteContent {
   platformFacebookUrl: string
   platformCreatorUrl: string
   platformKofiUrl?: string
+  platformKofiQrUrl?: string
   // ── Welcome Email ──
   welcomeEmailSubject: string
   welcomeEmailGreetingPrefix: string
@@ -418,6 +419,7 @@ export const DEFAULTS: SiteContent = {
   platformFacebookUrl: 'https://facebook.com/versebyversewithnate',
   platformCreatorUrl: 'https://creators.spotify.com/pod/profile/nmemmert/',
   platformKofiUrl: 'https://ko-fi.com/versebyversewithnate',
+  platformKofiQrUrl: '/images/kofi-qr.png',
   welcomeEmailSubject: 'Welcome to Verse by Verse with Nate',
   welcomeEmailGreetingPrefix: 'Glad you\'re here',
   welcomeEmailIntro: 'Thanks for subscribing to Verse by Verse with Nate - a Bible teaching podcast where we slow down, dig into the text, and pull out the nuggets God has for us word by word.',