[wasm] Add WasmSingleFileBundle for browser-wasm projects too

[radical]

.. similar to wasi-wasm.

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Issue Details

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.. similar to wasi-wasm.

Author:	radical
Assignees:	radical
Labels:	arch-wasm, area-Build-mono
Milestone:	9.0.0

[maraf]

Is this a duplicate of #86162?

[radical]

This one was for adding the build side of things, which was done in #95775 .