Update changelog for 1.14 release (#1424)

Signed-off-by: Viraj Sanghvi <[email protected]>

CHANGELOG.md

@@ -1,15 +1,6 @@
 # OUI
 
-## [Unreleased `1.x`](https://github.com/opensearch-project/oui/tree/1.x)
-
-### Deprecations
-
-
-### 🛡 Security
-
-
-### 📈 Features/Enhancements
-
+## [`1.14.0`](https://github.com/opensearch-project/oui/tree/1.14)
 
 ### 🐛 Bug Fixes
 
@@ -18,22 +9,11 @@
 - Configuration of borderRadius on Cards ([#1417](https://github.com/opensearch-project/oui/pull/1417))
 - Update components to respect new breakpoints ([#1416])(https://github.com/opensearch-project/oui/pull/1416)
 
-### 🚞 Infrastructure
-
-
-### 📝 Documentation
-
-
-### 🛠 Maintenance
-
-
 ### 🪛 Refactoring
 - Make Side Nav variables themeable ([#1417](https://github.com/opensearch-project/oui/pull/1417))
 - Make Links use font-weight `$ouiFontWeightSemiBold` (no change for existing themes) ([#1417](https://github.com/opensearch-project/oui/pull/1417))
 - Enable themes to define background colors for Buttons ([#1417](https://github.com/opensearch-project/oui/pull/1417))
 
-### 🔩 Tests
-
 
 ## [`1.13.0`](https://github.com/opensearch-project/oui/tree/1.13)