### Problem description
The bug described in #1663 was caused by an optimization of the display
rendering that uses drawlists to detect changes. The changes in the 3-d
visualizer don't contain drawlists when axes are turned off.
### Implementation description
The fix is to identify the 3d visualizer among the command lists of the
main window and, if found, avoid skipping frames regardless of the
result of the comparison of drawlists.
Closes#1663
### Problem description
There are some recent issues about Mac keys not configured properly for
the pattern editor. This PR moves all the shortcuts to the shortcut
manager, so they can be edited at will. Even if the key is not
identified correctly it should be possible to use preferred keys for any
action.
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Co-authored-by: Nik <werwolv98@gmail.com>
### Problem description
Typing `--help` causes ImHex to exit without outputting anything.
Diagnostic messages from glib, ASan, other libraries that might have
something important to say, etc. are also suppressed.
### Implementation description
This effectively reverts 7c1e33dde6e55ef6347f3b10868a42f456c2ae6a, which
was partially reverted only on Windows by code that was left commented
out in f114239f51ba68c385e3d46721dd9d97ca4a6c21.
Allowing other libraries to print to stderr may make the output ‘ugly’,
but lots of things print to stderr that are important for figuring out
why something is bugged, like ASan and glib.
### Additional things
### Problem description
The fonts list on Linux does not show all system fonts, and does not
show font names at all.
### Implementation description
Use Fontconfig to make the list less bad if Fontconfig headers are
available.
### Additional things
I like fonts.
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Co-authored-by: Nik <werwolv98@gmail.com>
