## Summary
*Replace this text with an explanation of what the changes are and how you implemented them. Can this impact any other parts of the codebase that we should keep in mind?*
## Test process
*How have you tested this (if applicable)?*
## Checklist
- [X] PR is linked to a **work item**
- [X] **acceptance criteria** of linked ticket are met
- [X] performed **self-review** of the code
- [X] written **tests** for any new functionality added with this PR
- [ ] updated the **documentation** if this PR changes or adds functionality
- [ ] written/updated **design docs** if this PR implements new functionality
- [ ] updated the **change log**
- [X] ran **pre-commit** checks for code style
- [X] attended to any **TO-DOs** left in the code
Related work items: #2676
## Summary
Carried over hit fixes from internal that backtracked on the complex channel width stuff for now and focussed on getting a stable data rate baked in for each frequency. Implemented overriding of frequency max capacities on the airspace. updated documentation to reflect the changes in airspace.py.
## Test process
- Original tests still work
- Tested reading the frequency capacity overrides from config file
- Tested that setting the frequency override to 0.0 blocks the channel
## Checklist
- [X] PR is linked to a **work item**
- [X] **acceptance criteria** of linked ticket are met
- [X] performed **self-review** of the code
- [X] written **tests** for any new functionality added with this PR
- [X] updated the **documentation** if this PR changes or adds functionality
- [ ] written/updated **design docs** if this PR implements new functionality
- [X] updated the **change log**
- [X] ran **pre-commit** checks for code style
- [X] attended to any **TO-DOs** left in the code
Related work items: #2745
## Summary
Implemented the last of the request validators from https://dev.azure.com/ma-dev-uk/PrimAITE/_wiki/wikis/PrimAITE.wiki/703/Action-Masking
files and folders validators
## Test process
integration tests for files and folders
added unit tests for previous validators as well
## Checklist
- [X] PR is linked to a **work item**
- [X] **acceptance criteria** of linked ticket are met
- [X] performed **self-review** of the code
- [X] written **tests** for any new functionality added with this PR
- [ ] updated the **documentation** if this PR changes or adds functionality
- [ ] written/updated **design docs** if this PR implements new functionality
- [ ] updated the **change log**
- [X] ran **pre-commit** checks for code style
- [ ] attended to any **TO-DOs** left in the code
Related work items: #2740
