decomissioning create react app

[kir12]

development on create react app has stopped and it's defacto depreciated and is starting to interfere with the ability to update to newer versions. (e.g. typescript 5 is only usable with an override) at some point switching over to vite will be required

[kir12]

additional changes:

• Remove create react app dependencies
• upgrade to typescript 5 without the override

[kir12]

there are a number of security bugs github has flagged on this repository which are attributed to create react app. at present they do not affect the live webpage (as create react app is a dev-only dependency) but when the transition to Vite is completed it is anticipated that these security bugs should go away

[kir12]

superseded by #66