Refactor logo image handling across components

- Introduced utility functions to determine the base directory and image URL for logos based on their collection.
- Updated `Actions.svelte`, `CardFull.svelte`, `CardMiddle.svelte`, `CardSmall.svelte`, and `CardTiny.svelte` to use the new utility functions for generating image paths.
- Ensured that the correct image format (SVG, PNG, JPG) is used based on the logo's properties and active color sets.

public/images/flags/cu.svg

@@ -0,0 +1,13 @@
+<svg xmlns="http://www.w3.org/2000/svg" id="flag-icons-cu" viewBox="0 0 640 480">
+  <defs>
+    <clipPath id="cu-a">
+      <path fill-opacity=".7" d="M-32 0h682.7v512H-32z"/>
+    </clipPath>
+  </defs>
+  <g fill-rule="evenodd" clip-path="url(#cu-a)" transform="translate(30)scale(.94)">
+    <path fill="#002a8f" d="M-32 0h768v512H-32z"/>
+    <path fill="#fff" d="M-32 102.4h768v102.4H-32zm0 204.8h768v102.4H-32z"/>
+    <path fill="#cb1515" d="m-32 0 440.7 255.7L-32 511z"/>
+    <path fill="#fff" d="M161.8 325.5 114.3 290l-47.2 35.8 17.6-58.1-47.2-36 58.3-.4 18.1-58 18.5 57.8 58.3.1-46.9 36.3z"/>
+  </g>
+</svg>