Previously, the top-level modal dismiss broadcaster would attempt to
dismiss all modals when the native file chooser was brought to the front
or clicked. This would end up calling Component::inputAttemptWhenModal,
which would bring the FileChooser's Component to the front, interrupting
the mouse click.

The fix is to avoid bringing the plugin window to the front when the
FileChooser is in a modal state. As the chooser is a native window, the
system should take care of enforcing the expected modal behaviour.

It's not clear why this issue only affects Cantabile. It seems that in
Cantabile, events from the native FileChooser get sent to the plugin
editor's parent HWND, whereas this doesn't happen in other hosts.
Perhaps Cantabile is hooking/intercepting window messages in some way.

This fixes a regression introduced in
a400d3ebe0.

One issue affected the situation where the provided bounds wouldn't
start at (0, 0). Such bounds are regularly acquired by calling
Rectangle::reduced().

The other issue affected the width calculation of fractional items.
The error wasn't correctly integrated during the computation, and as a
consequence the last fractional element would exhibit all the
accumulated error.

Prior to this commit all Grid calculations were carried out using
floating point numbers. The dimensions of all items would then be
rounded with the same function to calculate the integer dimensions used
for Component layout. This resulted in layout solutions where the width
or height of items with dimensions specified using the absolute Px
quantity could differ from the correctly rounded value of these values.

This commit ensures that the width and height of these items are always
correct and their cumulative error in size is distributed among items
with fractional dimensions.

This commit fixes a bug where a View would be registered as it's own
parent in the accessibility hierarchy leading to stack overflows in the
Android accessibility service. The issue affected up-to-date Android 13
systems and potentially older systems with updated accessibility
services.

Previously when using the FileBrowserComponent in TreeView mode, a
refresh would delete all items and rebuild the UI based on new
directory scan data, losing the openness state in the process. With
this commit only changes are applied to the current TreeView.

When clearing deferredRepaints in drawRect, dirty regions in the 'next'
frame could be incorrectly removed while drawing the 'current' frame.
Now, deferredRepaints is cleared in setNeedsDisplayRectangles, as it
was before 9d50ab6c59.

In cases where no JUCE component had keyboard focus, clicking a menu
item would cause the menu to be dismissed instead of triggering the
item's action.

The main change is that the numFramesToSkipMetalRenderer member has been
removed. The old mechanism had some problems in AU plugins in Logic.
Specifically, when opening a temporary window, repaints would be ignored
until the numFramesToSkipMetalRenderer counter had been decremented to
zero. In practice, this meant that a PopupMenu might not repaint until
the highlighted item had changed five times or more.

With this change applied, repaints that were requested for a particular
window size will use the metal renderer as long as the window hasn't
changed size in the meantime.

In some cases, processing key inputs may cause the currently-focused
text input target to be destroyed. If this happens, we shouldn't attempt
to reset the underlining on the target. We now reset the underlining
before processing key presses.

Rename look-and-feel method and update docs

- A repaint will always occur from a lookAndFeelChanged

- Created a new detail namespace
- Moved shared module implementation details into the detail namespace
- Split dependencies so source files only rely on details in the detail namespace
- Removed all code from the juce_gui_basics.cpp file

Fixes a bug on Windows when opening a FileChooser with the following
arguments.

    FileChooser ("",
                 "C:\path\to\file", // filename 'file' doesn't contain '.'
                 "",                // all extensions are allowed
                 true);

The expected behaviour is that the initially-displayed filename is
"file".

The actual behaviour was that the initially-displayed filename was
"file.file".