fix: Allow access to web docker app from outside container (#2659)

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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 -->

dist/web/serve.py

@@ -10,6 +10,6 @@ class MyHttpRequestHandler(http.server.SimpleHTTPRequestHandler):
 
 if __name__ == '__main__':
     os.chdir(".")
-    httpd = http.server.HTTPServer(("localhost", 9090), MyHttpRequestHandler)
+    httpd = http.server.HTTPServer(("0.0.0.0", 9090), MyHttpRequestHandler)
     print(f"Serving {os.getcwd()} on http://{httpd.server_address[0]}:{httpd.server_address[1]}")
     httpd.serve_forever()