chore(*): add mathlib4 synchronization comments (#19218)
Regenerated from the [port status wiki page](https://github.com/leanprover-community/mathlib/wiki/mathlib4-port-status).
Relates to the following files:
* `algebraic_geometry.elliptic_curve.weierstrass`
* `analysis.complex.upper_half_plane.basic`
* `analysis.complex.upper_half_plane.functions_bounded_at_infty`
* `analysis.complex.upper_half_plane.metric`
* `analysis.complex.upper_half_plane.topology`
* `analysis.fourier.riemann_lebesgue_lemma`
* `analysis.inner_product_space.linear_pmap`
* `analysis.special_functions.gamma.beta`
* `category_theory.closed.ideal`
* `category_theory.monad.equiv_mon`
* `control.random`
* `geometry.euclidean.monge_point`
* `geometry.manifold.complex`
* `geometry.manifold.partition_of_unity`
* `logic.equiv.array`
* `number_theory.legendre_symbol.jacobi_symbol`
* `number_theory.modular`
* `number_theory.modular_forms.jacobi_theta.basic`
* `number_theory.modular_forms.slash_actions`
* `number_theory.modular_forms.slash_invariant_forms`
* `ring_theory.witt_vector.compare`
* `ring_theory.witt_vector.discrete_valuation_ring`
* `ring_theory.witt_vector.domain`
* `ring_theory.witt_vector.frobenius`
* `ring_theory.witt_vector.identities`
* `ring_theory.witt_vector.init_tail`
* `ring_theory.witt_vector.mul_coeff`
* `ring_theory.witt_vector.truncated`
* `ring_theory.witt_vector.verschiebung`
* `set_theory.game.birthday`
* `set_theory.game.impartial`
* `set_theory.surreal.basic`
* `testing.slim_check.gen`
* `testing.slim_check.sampleable`
* `testing.slim_check.testable`
