chore: bump version to 1.3.0 and update changelog

Update changelog with recent improvements:
- Added author and email columns to commit list
- Auto-open diff view on double-click
- Changed default date range to today
- Fixed unversioned files line counting in status bar

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Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: HAPI <yesreply@happy.engineering>

Author: 3 people

CHANGELOG.md

@@ -4,6 +4,15 @@
 
 ## [Unreleased]
 
+### Added
+
+- **Author and Email Columns**: Added author and email columns to the commit list table for better commit attribution visibility
+- **Auto-open Diff View**: Double-clicking a commit now automatically shows the diff view without requiring manual selection
+
+### Changed
+
+- **Default Date Range**: Tool window now defaults to showing today's commits instead of the last 3 months for faster initial loading
+
 ## [1.2.0] - 2025-12-21
 
 ### Added

gradle.properties

@@ -4,7 +4,7 @@ pluginGroup = com.github.sukieva.gitcommitstats
 pluginName = GitCommitStats
 pluginRepositoryUrl = https://github.com/SukiEva/git-commit-stats
 # SemVer format -> https://semver.org
-pluginVersion = 1.2.0
+pluginVersion = 1.3.0
 
 # Supported build number ranges and IntelliJ Platform versions -> https://plugins.jetbrains.com/docs/intellij/build-number-ranges.html
 pluginSinceBuild = 253