Objects and Object Constructors: Clarified project reference in Objects and Object Constructors lesson

[sarthakvermaa]

Because

The very next lesson is the "Library project", where the book constructor will be used as part of making the project as We will revisit this in the project at the end of this lesson. looks confusing to users.

This PR

changes the sentence We will revisit this in the project at the end of this lesson. to We will revisit this in the next project. in the Objects and Object Constructors lesson.

Issue

Closes #28890

Additional Information

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