Unified visualizer & override ui, enabled on all entities

[Wumpf]

What

Previously, we had ui for adding component overrides, under an experimental feature everywhere except the time series view + some hardcoded ui for manipulating overrides (those that were EntityProperties in 0.16).

This PR removes both the component override ui and the hardcoded property ui in favor of a new overview + override ui showing all currently used values by all active visualizers + ability to add/remove visualizers.

Recording.2024-06-19.163825.mp4

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Noteworthy "sideeffects":

• ComponentUiCallback now uses raw arrow arrays, allowing it to show fallbacks
• kills lots'a old code :)
• VisualizerQueryInfo::queried keeps now archetype component ordering instead of alphabetical (not in above video yet)
• lots of inconsistency in our data flow are now visible

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Planned direct follow-ups:

• allow various reset / override menus
  • particularly important: remove override, add (single) override on multi-value
  • Would be great to do this with a menu button, will have to be a context menu until Unify menus with tooltips/popups emilk/egui#4607 is handled
• allow expanding to see the override/store/default/fallback stack
  • original plan was to skip on this, but the method has all the data layed out neatly now, so might as well!
• get the "Add" button integrated into the top (unless this is hard?)
• show better docs: Improve tooltips for overrides and defaults as well as for enums  #6556
• Find a better name for the "blueprint section" below

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Also needed but not planned short term:

• inspect multivalues
  • we could do so for store multivalues already, but everything else we can't yet select, so let's tackle this later
• ui polish

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Part of:

• UI for showing overrides and data sources #4888

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[jleibs]

This is such a nice improvement!