feat: add 'Drill from Position' functionality to the analysis screen

[maddavid123]

Draft implementation of #185 - incomplete and possibly buggy.
Currently loads the PGN and FEN of the position in the analysis mode into the drill tool.
Current outstanding problems:

• Does not use the configuration modal, instead hardcodes the Maia model, number of drills and number of moves per drill.
• Analyses the whole game up to the end of the drill instead of just the moves inside the drill. (Understandable behaviour as the drill tool is only usually used for openings. Would be nice, perhaps as a future PR if we could restrict analysis to only moves played in the drill)

My understanding of typescript/javascript and by extension React/Next.js is very limited (My work usually is embedded C or CLI tasks in C#), so I may have missed better ways of achieving the similar behaviour or trusted the IDE a bit too much where it's unnecessary.

It's late where I am, so will follow up with any feedback/discussion points tomorrow.

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[kevinjosethomas]

Let me know if you have the time to complete implementing this; otherwise I'll implement it in my next opening page update

[maddavid123]

Alright, I think this is ready for review.

Open issues that I'm aware of:
Analysis after drilling is still affecting the entire drill. Seems like this feature would require a partial analysis, though that's beyond me at this point.
Drill ending modals all refer to opening drill results, or similar. I'm thinking the simplest change would be to change the text to remove the word opening in order to make it more generic to the two contexts (openings or custom positions) but naturally requires some level of feedback.

Also, I didn't check how this is viewed on mobile.