Move AI model configs to presets and add a dropdown to swap between configs

[esimkowitz]

Adds the ability to specify multiple AI configs using the presets.json file and adds a new UI dropdown to switch between model configs. Will move to a separate ai-presets.json file later. To use the existing config from settings.json, use the "Global Default" preset

Updates the Menu component to use the floating-ui library, which provides some really nice primitives for floating overlays.

Also fixes useDimensions to better handle null refs.

Screen.Recording.2024-10-12.at.5.28.47.PM.mov

closes #945

[esimkowitz]

• TODO: reintroduce the settings compatibility and use UpdateMetaObject to apply the presets

[C0sm0cats]

Hello
When opening multiple AI windows, the labels in the title (e.g., "global Default") accumulate additional values (e.g., "gpt-4o-mini"). This seems to be related to the logic of recalculating the presetMap, which is executed each time the map is recalculated.

The function that modifies the display:name of presets is called every time the presetMap is recalculated, leading to additional labels in the title. The current conditions for determining the display:name do not appear to be strict enough, allowing values to accumulate.

cosmo
Manjaro user

[esimkowitz]

Haha whoops, will fix