fix(api) - #11 Send to Kindle Support

* fix(api/image_downloads): Replace image url with file path

* fix(api/image_downloads): Add comments

* fix(frontend): Update changelog

* Support Send2Kindle

* Update changelog

src/frontend/src/routes/+page.svelte

@@ -68,6 +68,7 @@
           </p>
           <ul class="pt-4 list list-inside text-xl">
             <!-- TODO: 'max-lg: hidden' to hide on screen sizes smaller than lg. I'll do this when I figure out how to make this show up _below_ the card on smaller screen sizes. -->
+            <li>11/24 - 📨 Send to Kindle Support!</li>
 
             <li>11/24 - ⚒️ Fix Image Downloads</li>
             <li>