v1.0.6 - Editor toolbar & UX improvements

BUG FIXES:
- Slash command panel no longer triggers on existing unix paths (e.g. /usr/local/bin)
- Formatting dropdowns (Insert, Color, Highlight, etc.) now dismiss when clicking outside

ENHANCEMENTS:
- All toolbar icons replaced with official Lucide icons for consistent style
- Bold icon now visually appears bold
- Ordered list icon no longer has overlapping numbers
- Highlight marker padding balanced (top/bottom/sides)
- Version bump to 1.0.6

src-tauri/tauri.conf.json

@@ -1,7 +1,7 @@
 {
   "$schema": "../node_modules/@tauri-apps/cli/config.schema.json",
   "productName": "HelixNotes",
-  "version": "1.0.5",
+  "version": "1.0.6",
   "identifier": "com.helixnotes.app",
   "build": {
     "frontendDist": "../build",