Remove unnecessary bottom margin for TabView on mac

This extra padding at the bottom is not needed and only serves to
make the borders uneven on mac.

Change-Id: Ibb3f8a3ba1f37ce1e9c6674a53cfb13e257fb97f
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@digia.com>
Doc: Add doc structure for Styles

And:
- Add an index page for the Styles
- Add missing documentation for some properties (Component)
- Fix unexpected curly brackets in a couple of code snippets

Change-Id: Ib7265d1cd011a81012eb4b7f69738b84fba5b531
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
Doc: Fixes warnings

Fixes issues including:
- Misspelled links
- Links to signal with arguments
- \table in SplitView.qml
- Links to current file

Change-Id: I2cbadf661a641f19ed55f6854922b2b69966bc9c
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
Fix incorrect size hint for ToolBar and StatusBar

We only cared about reserving space for the height but while
trying to actually get the minimumSize for a window based on
the toolbar content I realized that we really need to calculate
the width as well.

Change-Id: I7b55b66a2475a2355d30614095f173a39f47f2f1
Reviewed-by: Caroline Chao <caroline.chao@digia.com>