chore(release): bump version to 4.5.0

Monospace font embedding feature release. Adds bundled JetBrains Mono +
Fira Code TTFs (asarUnpack), preview/print font picker with ligatures
toggle, and embedded fonts in PDF (xelatex fontspec), DOCX (OOXML
surgery), EPUB (--epub-embed-font + OPF manifest), and HTML (sidecar
CSS with base64 data URI).

README.md

@@ -162,4 +162,4 @@ Amit Haridas (amit.wh@gmail.com)
 
 ## Version
 
-v4.4.5
+v4.5.0

package.json

@@ -1,6 +1,6 @@
 {
   "name": "markdown-converter",
-  "version": "4.4.5",
+  "version": "4.5.0",
   "description": "Professional Markdown editor and universal file converter with PDF editing, batch processing, and syntax highlighting",
   "main": "src/main.js",
   "scripts": {

src/renderer.js

@@ -1,6 +1,6 @@
 /**
  * MarkdownConverter Renderer Process
- * @version 4.4.5
+ * @version 4.5.0
  */
 
 const { ipcRenderer } = require('electron');

src/utils/ModalManager.js

@@ -1,6 +1,6 @@
 /**
  * ModalManager - Unified modal system with accessibility support
- * @version 4.4.5
+ * @version 4.5.0
  */
 class ModalManager {
   #modal;