fix(search): add mods source filter fn

Closes #77

src/pages/search.tsx

@@ -337,8 +337,15 @@ const ModsResult = ({
         tag.toLowerCase().includes(lowerCaseSearchTerm)
       ) > -1
 
-    return mods.filter(filterFn)
-  }, [mods, searchTerm])
+    const filterSourceFn = (mod: ModDetails) => {
+      if (filterOptions.source === window.location.host) {
+        return mod.rTag === filterOptions.source
+      }
+      return true
+    }
+
+    return mods.filter(filterFn).filter(filterSourceFn)
+  }, [filterOptions.source, mods, searchTerm])
 
   const filteredModList = useFilteredMods(
     filteredMods,