Spell Checking

### Why

We want the app to be properly spelt out.

### The Plan

```[tasklist]
## Tasks
- [x] Run [streetsidesoftware/cspell-action](https://github.com/marketplace/actions/cspell-action) over all of the code.
- [x] Fix Spelling Errors
- [ ] Run cspell over all repo content
- [ ] Run only changed files
```
