Remove achievements/scores/killcount top-level keybinding and move it into the diary menu (bound by default to ')')

[strategineer]

Summary

None

Purpose of change

See issues below for more details.

Fixes #59686
Fixes #59685

Describe the solution

• Remove global "scores" keybind from code and replace it with a VIEW_SCORES keybind accessible only from the diary menu.
• Re-use "scores" keybind's default use of ')' for the key to access the diary by default.
• Implement VIEW_SCORES keybind and hint at its use from the diary menu.

Describe alternatives you've considered

None.

Testing

• Checked changed keybinds and ensured that they appeared in the right places and worked as expected.

Additional context

diary menu:

diary keybindings:

achievements/scores/killcount menu showing overlaid on top of diary menu:

[bombasticSlacks]

@I-am-Erk the code for this looks fine to me, but it's your issue, so figured you should take a look if this is what you wanted, or is at least a step in the right direction.

[kevingranade]

This pull request has been mentioned on Cataclysm: Dark Days Ahead. There might be relevant details there:

https://discourse.cataclysmdda.org/t/game-continually-crashes-when-creature-dies/28632/6