docs: add companies frontmatter, schema, and rendering in badges & appendix pages

apps/docs/content/(03-hierarchical)/trie/208_implement-trie-prefix-tree.mdx

@@ -9,6 +9,12 @@ topics:
   - { name: "Trie", slug: "trie" }
 video: "oobqoCJlHA0"
 issue: "https://github.com/prdlk/leetcode/issues/127"
+companies:
+  - { name: "Meta", period: "Thirty Days", frequency: 53.8 }
+  - { name: "Google", period: "Thirty Days", frequency: 29 }
+  - { name: "Apple", period: "Six Months", frequency: 48.1 }
+  - { name: "Microsoft", period: "Six Months", frequency: 37.9 }
+  - { name: "Bloomberg", period: "Six Months", frequency: 34.2 }
 sidebar:
   label: 'Implement Trie (Prefix Tree)'
   badge: 'Medium'

apps/docs/content/(03-hierarchical)/trie/211_design-add-and-search-words-data-structure.mdx

@@ -9,6 +9,9 @@ topics:
   - { name: "Trie", slug: "trie" }
 video: "BTf05gs_8iU"
 issue: "https://github.com/prdlk/leetcode/issues/128"
+companies:
+  - { name: "Amazon", period: "Three Months", frequency: 21.2 }
+  - { name: "Snowflake", period: "Six Months", frequency: 58.7 }
 sidebar:
   label: 'Design Add and Search Words Data Structure'
   badge: 'Medium'