Isotropic diffusion stabilization for ComponentTransport

See merge request ogs/ogs!4272

Heatpipe notebook added to TH2M/TH2 benchmark

See merge request ogs/ogs!4244

Mesh mapping CLI

See merge request ogs/ogs!4270

[Jupyter notebook] Bugfix: decay-chain problem: update path to GIA results.

See merge request ogs/ogs!4277

Previously using inexact predicates would yield ambiguous results whether a point
is inside or outside of a projected element, depending on compiler and architecture.

The exact predicates are slower, so one could think about to add a run-time flag to
use exact or inexact predicates giving the user an option for fast or correct calculations.

Jupyter Notebook: Convergence study of the disc with hole problem.

See merge request ogs/ogs!4235

Different environments (local, CI) might have different output
directories for simulation results