[PowerRename] Suppress redundant midl warning

[yuyoyuppe]

Summary of the Pull Request

Removes these warnings:

1>Processing WinMD c:\program files (x86)\windows kits\10\references\10.0.20348.0\windows.ui.xaml.core.direct.xamldirectcontract\3.0.0.0\windows.ui.xaml.core.direct.xamldirectcontract.winmd
1>..\PowerToys\src\modules\powerrename\PowerRenameUILib\ExplorerItemsSource.idl(9): warning MIDL4066: [msg]A member name has been qualified with an interface name because name collisions occurred across interface members on a runtime class. [context]"GetAt" has been renamed as "Windows.Foundation.Collections.IVector`1<Object>.GetAt" on runtime class "PowerRenameUI.ExplorerItemsSource"
1>..\PowerToys\src\modules\powerrename\PowerRenameUILib\ExplorerItemsSource.idl(9): warning MIDL4066: [msg]A member name has been qualified with an interface name because name collisions occurred across interface members on a runtime class. [context]"GetAt" has been renamed as "Windows.Foundation.Collections.IVectorView`1<Object>.GetAt" on runtime class "PowerRenameUI.ExplorerItemsSource"
1>..\PowerToys\src\modules\powerrename\PowerRenameUILib\ExplorerItemsSource.idl(9): warning MIDL4066: [msg]A member name has been qualified with an interface name because name collisions occurred across interface members on a runtime class. [context]"get_Size" has been renamed as "Windows.Foundation.Collections.IVectorView`1<Object>.get_Size" on runtime class "PowerRenameUI.ExplorerItemsSource"
1>..\PowerToys\src\modules\powerrename\PowerRenameUILib\ExplorerItemsSource.idl(9): warning MIDL4066: [msg]A member name has been qualified with an interface name because name collisions occurred across interface members on a runtime class. [context]"Size" has been renamed as "Windows.Foundation.Collections.IVectorView`1<Object>.Size" on runtime class "PowerRenameUI.ExplorerItemsSource"
1>..\PowerToys\src\modules\powerrename\PowerRenameUILib\ExplorerItemsSource.idl(9): warning MIDL4066: [msg]A member name has been qualified with an interface name because name collisions occurred across interface members on a runtime class. [context]"get_Size" has been renamed as "Windows.Foundation.Collections.IVector`1<Object>.get_Size" on runtime class "PowerRenameUI.ExplorerItemsSource"
1>..\PowerToys\src\modules\powerrename\PowerRenameUILib\ExplorerItemsSource.idl(9): warning MIDL4066: [msg]A member name has been qualified with an interface name because name collisions occurred across interface members on a runtime class. [context]"Size" has been renamed as "Windows.Foundation.Collections.IVector`1<Object>.Size" on runtime class "PowerRenameUI.ExplorerItemsSource"
1>..\PowerToys\src\modules\powerrename\PowerRenameUILib\ExplorerItemsSource.idl(9): warning MIDL4066: [msg]A member name has been qualified with an interface name because name collisions occurred across interface members on a runtime class. [context]"IndexOf" has been renamed as "Windows.Foundation.Collections.IVector`1<Object>.IndexOf" on runtime class "PowerRenameUI.ExplorerItemsSource"
1>..\PowerToys\src\modules\powerrename\PowerRenameUILib\ExplorerItemsSource.idl(9): warning MIDL4066: [msg]A member name has been qualified with an interface name because name collisions occurred across interface members on a runtime class. [context]"IndexOf" has been renamed as "Windows.Foundation.Collections.IVectorView`1<Object>.IndexOf" on runtime class "PowerRenameUI.ExplorerItemsSource"
1>..\PowerToys\src\modules\powerrename\PowerRenameUILib\ExplorerItemsSource.idl(9): warning MIDL4066: [msg]A member name has been qualified with an interface name because name collisions occurred across interface members on a runtime class. [context]"GetMany" has been renamed as "Windows.Foundation.Collections.IVector`1<Object>.GetMany" on runtime class "PowerRenameUI.ExplorerItemsSource"
1>..\PowerToys\src\modules\powerrename\PowerRenameUILib\ExplorerItemsSource.idl(9): warning MIDL4066: [msg]A member name has been qualified with an interface name because name collisions occurred across interface members on a runtime class. [context]"GetMany" has been renamed as "Windows.Foundation.Collections.IVectorView`1<Object>.GetMany" on runtime class "PowerRenameUI.ExplorerItemsSource"
1>Done building project "PowerRenameUI.vcxproj".

PR Checklist

• Closes: #xxx
• Communication: I've discussed this with core contributors already. If work hasn't been agreed, this work might be rejected
• Tests: Added/updated and all pass
• Localization: All end user facing strings can be localized
• Dev docs: Added/updated
• New binaries: Added on the required places
  • JSON for signing for new binaries
  • WXS for installer for new binaries and localization folder
  • YML for CI pipeline for new test projects
  • YML for signed pipeline
• Documentation updated: If checked, please file a pull request on our docs repo and link it here: #xxx

Detailed Description of the Pull Request / Additional comments

Validation Steps Performed

[stefansjfw]

LGTM. Confirmed that warning are gone