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/ro.svg

@@ -0,0 +1,7 @@
+<svg xmlns="http://www.w3.org/2000/svg" id="flag-icons-ro" viewBox="0 0 640 480">
+  <g fill-rule="evenodd" stroke-width="1pt">
+    <path fill="#00319c" d="M0 0h213.3v480H0z"/>
+    <path fill="#ffde00" d="M213.3 0h213.4v480H213.3z"/>
+    <path fill="#de2110" d="M426.7 0H640v480H426.7z"/>
+  </g>
+</svg>