Refactored the Edit/Add modals into their own structs so that adding similar modals in the future is more consistent, uses less RAM (since it's wrapped in an Option now), and is easier to implement. This comes with an initial example of the IndexerSettings UI that needs its own modal now. The modal has been created but it is still not used just yet so that's the next step.

src/models/servarr_data/mod.rs

@@ -1 +1 @@
-pub mod radarr_data;
+pub mod radarr;