Dime-xai

Bugfixes
- fixed a bug that prevented toggling the `secure_url` option via `.env`

Improvements
- added the support for toggle between `HTTP` and `HTTPS` for securing `bot URL` when explaining models via `REST API`

Improvements
- redefined file io constants for source code clarity

Bugfixes
- fixed a bug that caused errors in retrieving models due to an unexpected `reverse` argument

Improvements
- enabled `data_source_path` argument passing in `process queue`
- explanations UI improvements

Bugfixes
- refined constant definitions
- fixed version inconsistency in the UI by fetching the version directly from the backend configurations
- fixed frontend doc url inconsistencies by defining them in the backend
- fixed api url inconsistencies by defining them in the backend

Improvements
- removed custom dir and moved dime_diet_classifier to a dir called 'dime_components' in init dir list
- improved favicon support and the manifest
- UI Improvements

Bugfixes
- removed redundant .env file loading
- turned off version check for config file

Improvements
- added Sinhala-English code-switching typing support