A few more fixes

New

• Added support for Shift-Tab to unindent nodes in Quick Entry.

Changes

• Updated Italian translation (thanks to @albanobatistella).
• Improved Quick Entry auto-formatting to reduce user errors.

Bug Fixes

• Fixed issue where ancestor node task percentages not updating properly when multiple descendant nodes were removed.
• Fixed issue that could cause application to crash when deleting multiple nodes.
• Fixed issue that could cause application to crash when inserting/replacing badly formatted quick entry input.