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### Problem description
When trying to install imhex as a docker container using
`ghcr.io/werwolv/imhex/imhex-web`, the 9090 port doesn't connect to
anything on the host server. Connections to 9090 work inside the
container.
This is because the `localhost` address is `127.0.0.1` which does not
allow for access from outside.
### Implementation description
Change server binding from `localhost` to `0.0.0.0` to allow connections
from all interfaces, no just `lo`.
### Screenshots
<img width="345" height="257" alt="image"
src="https://github.com/user-attachments/assets/2825ac11-657c-4c34-b918-60c4a2750b0f"
/>
Where 9090 is before and 9091 is after the change.
Before
<img width="846" height="339" alt="image"
src="https://github.com/user-attachments/assets/4635467d-5190-49a8-bd97-f678f364250d"
/>
After
<img width="835" height="969" alt="image"
src="https://github.com/user-attachments/assets/af3f0228-ae0b-4704-89c9-50b32c2198eb"
/>
### Additional things
<!-- Anything else you would like to say -->
This PR drops the use of brew for dependency management in favor of
macports so we can support lower macOS versions instead of just the
lowest one supported by Apple
Closes#2586
Rationale: The `IMHEX_PLUGINS_IN_SHARE` is a hack to prevent the appimage from loading plugin from system imhex installation, like /usr/lib/imhex/
In reality, I do not think people compile plugins specifically for the AppImage (plugins must be compiled for the specific imhex & compiler version the imhex binary is used), and this lets us remove the hack
