Add backwards compatability for Adobe Lightroom

Because it was renamed it may result in unexpected errors --> breaking 
changes.

This is a temporary solution to circumvent the problem. This can be 
removed once some other breaking changes are also present and a major 
new version is released. I propose removing this change when 
https://github.com/simple-icons/simple-icons/issues/1362 is implemented

scripts/prepublish.js

@@ -27,5 +27,19 @@ data.icons.forEach(icon => {
     );
 });
 
+/* Backwards compatibility */
+// https://github.com/simple-icons/simple-icons/pull/1365
+const adobeLightroom = icons["Adobe Lightroom Classic"];
+adobeLightroom.title = "Adobe Lightroom";
+icons["Adobe Lightroom"] = adobeLightroom;
+fs.writeFileSync(
+    `${iconsDir}/adobelightroom.svg`,
+    adobeLightroom.svg
+);
+fs.writeFileSync(
+    `${iconsDir}/adobelightroom.js`,
+    `module.exports=${JSON.stringify(adobeLightroom)};`
+);
+
 // write our generic index.js
 fs.writeFileSync(indexFile, `module.exports=${JSON.stringify(icons)};`);