feat(pokemon): add related Pokemon section to detail view

Fetch related Pokemon based on shared environment and favorite things
Add UI with habitat filtering and highlighted shared attributes

frontend/src/i18n.ts

@@ -142,6 +142,8 @@ const messages = {
         skillDrop: '{name} drop',
         dropItem: 'Drop item',
         searchPokemon: 'Search Pokemon',
+        relatedPokemon: 'Related Pokemon',
+        relatedHabitat: 'Related Pokemon habitat',
         relatedItems: 'Related items',
         relatedItemCategory: 'Related item category',
         habitats: 'Habitats',
@@ -571,6 +573,8 @@ const messages = {
         skillDrop: '{name}掉落物',
         dropItem: '掉落物',
         searchPokemon: '搜索 Pokemon',
+        relatedPokemon: '相关 Pokemon',
+        relatedHabitat: '相关 Pokemon 栖息地',
         relatedItems: '关联物品',
         relatedItemCategory: '关联物品分类',
         habitats: '栖息地',