Advise on HPC conda environments consuming home directory quota

It's been a repeated occurrence that conda environments, which default to living in a user's home directory, causes the user's quota to exceed the file count limit on OSC.

To fix this, conda can be configured to store environments and packages in a custom location, scratch storage being an appropriate option I use and have recommended. E.g., in a `~/.condarc` file:

```bash
solver: libmamba
envs_dirs:
- /fs/scratch/PAS2136/$USER/conda-envs
pkgs_dirs:
- /fs/scratch/PAS2136/$USER/conda-pkgs

channels:
- conda-forge
- defaults

```

Would it make sense to do the following:
- Add a general discussion of this issue under the [Conda section of Virtual Environments](https://imageomics.github.io/Imageomics-guide/wiki-guide/Virtual-Environments/#conda-environments)
- Provide a generic `.condarc` template that can be copied using `/path/to/desired/user/conda-envs` and `/path/to/desired/user/conda-pkgs`

Should an entry be made into the internal guidelines wiki for Imageomics using the actual paths?

Start with the Conda section of Virtual Environments linked in the issue and review the repository's existing documentation structure. Add the general quota guidance and a copyable generic .condarc template, then clarify whether the internal Imageomics wiki should document the actual paths; done means both audiences have appropriate instructions.

Written by the indexing model from the issue text.