Use abbreviation for JavaScript and TypeScript

docs/chapter_greedy/fractional_knapsack_problem.md

@@ -63,7 +63,7 @@
     [class]{}-[func]{fractionalKnapsack}
     ```
 
-=== "JavaScript"
+=== "JS"
 
     ```javascript title="fractional_knapsack.js"
     [class]{Item}-[func]{}
@@ -71,7 +71,7 @@
     [class]{}-[func]{fractionalKnapsack}
     ```
 
-=== "TypeScript"
+=== "TS"
 
     ```typescript title="fractional_knapsack.ts"
     [class]{Item}-[func]{}

docs/chapter_greedy/greedy_algorithm.md

@@ -43,13 +43,13 @@
     [class]{}-[func]{coinChangeGreedy}
     ```
 
-=== "JavaScript"
+=== "JS"
 
     ```javascript title="coin_change_greedy.js"
     [class]{}-[func]{coinChangeGreedy}
     ```
 
-=== "TypeScript"
+=== "TS"
 
     ```typescript title="coin_change_greedy.ts"
     [class]{}-[func]{coinChangeGreedy}

docs/chapter_greedy/max_capacity_problem.md

@@ -101,13 +101,13 @@ $$
     [class]{}-[func]{maxCapacity}
     ```
 
-=== "JavaScript"
+=== "JS"
 
     ```javascript title="max_capacity.js"
     [class]{}-[func]{maxCapacity}
     ```
 
-=== "TypeScript"
+=== "TS"
 
     ```typescript title="max_capacity.ts"
     [class]{}-[func]{maxCapacity}

docs/chapter_greedy/max_product_cutting_problem.md

@@ -87,13 +87,13 @@ $$
     [class]{}-[func]{maxProductCutting}
     ```
 
-=== "JavaScript"
+=== "JS"
 
     ```javascript title="max_product_cutting.js"
     [class]{}-[func]{maxProductCutting}
     ```
 
-=== "TypeScript"
+=== "TS"
 
     ```typescript title="max_product_cutting.ts"
     [class]{}-[func]{maxProductCutting}