Wrong logic to find project when it's multi-module

[jdneo]

In the code base, there are some places that we use the path length to find the container and get the project. This may be not correct:

eclipse.jdt.ls/org.eclipse.jdt.ls.core/src/org/eclipse/jdt/ls/core/internal/handlers/MoveHandler.java

Lines 358 to 360 in 91ebb5f

	Arrays.sort(targetContainers, (Comparator<IContainer>) (IContainer a, IContainer b) -> {
	return a.getFullPath().toPortableString().length() - b.getFullPath().toPortableString().length();
	});

and

https://github.com/eclipse-jdtls/eclipse.jdt.ls/blob/91ebb5f9798946294c27d53e4eccebd847b650a3/org.eclipse.jdt.ls.core/src/org/eclipse/jdt/ls/core/internal/commands/ProjectCommand.java#L281C1-L284

More details and analysis can be found in microsoft/vscode-java-dependency#788