fix: suppress fromIccProfile Qt warning flood on startup

[FelipeDefensor]

Problem

On macOS, running TiLiA floods the log with hundreds of:

[QtWarningMsg] None:0 - fromIccProfile: Failed to parse description

They appear at startup, before any file or user content is loaded.

Root cause

The message comes from QtGui's ICC parser (category qt.gui.icc), not
from any TiLiA asset — all bundled icons are SVG and carry no ICC profile.
Qt reads the display colour profile that macOS provides and fails to
parse its desc (description) tag. The parse is repeated once per native
window/widget, so a single QMainWindow already yields ~17 lines; TiLiA's
main window plus its dock widgets and toolbars turn that into a flood.

Isolated on a real cocoa display:

Setup	fromIccProfile lines
bare QApplication	1
QIcon.fromTheme('tilia')	1
QApplication + QMainWindow.show()	17
QWebEngineView	1

The warning is purely cosmetic — the images render correctly. There is
nothing to strip: the profile belongs to the user's monitor, not to a file
TiLiA ships or loads.

Fix

Add the message to QT_LOG_NOISE_PATTERNS in boot.py, so the existing Qt
log handler drops it — the same treatment already applied to other harmless
Qt rendering noise (QFont::setPixelSize, GetGlyphRunOutline). Filtering
is by message substring, so it is source-agnostic.

Tests

Added "fromIccProfile: Failed to parse description" to the parametrized
test_known_noise_warning_is_suppressed case. TestHandleQtLogMessage
passes (14 tests); ruff + black clean.

🤖 Generated with Claude Code