Add strait of Gibraltar and Italia maps (#1363)

## Description:

Add strait of Gibraltar and Italia maps

## Please complete the following:

- [x] I have added screenshots for all UI updates
- [x] I process any text displayed to the user through translateText()
and I've added it to the en.json file
- [x] I have added relevant tests to the test directory
- [x] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced
- [x] I understand that submitting code with bugs that could have been
caught through manual testing blocks releases and new features for all
contributors

## Please put your Discord username so you can be contacted if a bug or
regression is found:

evan

src/server/MapPlaylist.ts

@@ -41,6 +41,8 @@ const frequency = {
   FalklandIslands: 1,
   Baikal: 1,
   Halkidiki: 1,
+  StraitOfGibraltar: 1,
+  Italia: 1,
 };
 
 interface MapWithMode {