FancyZones: improve windows and apps filtering (#673)

Unifies the way windows are considered "interesting" by FancyZone.
Berfore the change WinKey + arrows would use different method than
dragging. This PR makes both use the WinKey + arrows method.

Cleans up FancyZones Settings.cpp by removing m_configStrings variable.
Contrary to its name it was used to create color picker control.

Adds a multiline option to the text input to settings. Uses this to
provide the user with a way to exclude certain apps from snapping to
zones.

src/modules/fancyzones/lib/Settings.h

@@ -17,6 +17,8 @@ struct Settings
     bool use_cursorpos_editor_startupscreen = true;
     std::wstring zoneHightlightColor = L"#0078D7";
     PowerToysSettings::HotkeyObject editorHotkey = PowerToysSettings::HotkeyObject::from_settings(true, false, false, false, VK_OEM_3, L"~");
+    std::wstring excludedApps = L"";
+    std::vector<std::wstring> excludedAppsArray;
 };
 
 interface __declspec(uuid("{BA4E77C4-6F44-4C5D-93D3-CBDE880495C2}")) IFancyZonesSettings : public IUnknown