Trim MAL & MB id: query before lookup (#3793)

This was included for all other trackers in #3776 but these two had
prefix search before.

It's a small change, but it can go a long way when using `id:` with
copy-pasted IDs from elsewhere which come with starting or trailing
whitespace.

app/src/main/java/eu/kanade/tachiyomi/data/track/mangabaka/MangaBaka.kt

@@ -104,7 +104,7 @@ class MangaBaka(id: Long) : BaseTracker(id, "MangaBaka"), DeletableTracker {
 
     override suspend fun search(query: String): List<TrackSearch> {
         if (query.startsWith(SEARCH_ID_PREFIX)) {
-            query.substringAfter(SEARCH_ID_PREFIX).toIntOrNull()?.let { id ->
+            query.substringAfter(SEARCH_ID_PREFIX).trim().toIntOrNull()?.let { id ->
                 return api.getMangaDetails(id)?.let { listOf(it) } ?: emptyList()
             }
         }

app/src/main/java/eu/kanade/tachiyomi/data/track/myanimelist/MyAnimeList.kt

@@ -112,7 +112,7 @@ class MyAnimeList(id: Long) : BaseTracker(id, "MyAnimeList"), DeletableTracker {
 
     override suspend fun search(query: String): List<TrackSearch> {
         if (query.startsWith(SEARCH_ID_PREFIX)) {
-            query.substringAfter(SEARCH_ID_PREFIX).toIntOrNull()?.let { id ->
+            query.substringAfter(SEARCH_ID_PREFIX).trim().toIntOrNull()?.let { id ->
                 return listOf(api.getMangaDetails(id))
             }
         }