Add weapon data

public/data/weapons/tranquil-arias.json

@@ -0,0 +1,17 @@
+{
+  "id": "tranquil-arias",
+  "name": "Tranquil Arias",
+  "atk": 275,
+  "crt": 27,
+  "rarity": 5,
+  "skills": [
+    {
+      "name": "Waning Moon",
+      "description": "When attacking enemies affected by Time Slow, deal 1,000 Physical DMG and 1,500 Ice DMG to target and nearby enemies. CD: 5.0s."
+    },
+    {
+      "name": "Night Bringer",
+      "description": "Character gains 15% Physical and Elemental DMG. When deployed, character gains 50% Total DMG Multiplier for 5.0s. This buff triggers once every 30s when the character is deployed. Using the Ultimate skill resets the CD and immediately activates the buff."
+    }
+  ]
+}