doc: Document !2131

And fix codespell fixes in other changelog fragments

doc/changes/auxiliary/mr.2131.2.md

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+t/slam: Send hand tracking masks to VIT system

doc/changes/auxiliary/mr.2131.3.md

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+u/space: Fix build warning because of non-void function not returning

doc/changes/auxiliary/mr.2131.md

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+t/slam: Update to VIT 1.0.1 with small usage improvements

doc/changes/compositor/mr.1969.2.md

@@ -1,3 +1,3 @@
 render: Refactor gfx path code to split out render pass vulkan objects from
 the render target resources struct into the `render_gfx_render_pass` struct.
-This allows the render pass to resused for more then one target.
+This allows the render pass to be reused for more than one target.

doc/changes/drivers/mr.2131.2.md

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+d/wmr: Properly compute hand tracking boundary circle

doc/changes/drivers/mr.2131.3.md

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+d/vive: Use raw imu samples for slam

doc/changes/drivers/mr.2131.md

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+d/{wmr,rift_s,vive,ns}: Share hand bounding box with head tracker

doc/changes/ipc/mr.2094.md

@@ -1,4 +1,4 @@
 server: Make the server a little bit more chatty by default (switch the default
 logging level `info` from `warn`). Print out a messages that the service has
-started, and advicing on how to collect information to help in debugging to ease
+started, and advising on how to collect information to help in debugging to ease
 helping end-users.

doc/changes/tracking/mr.2131.md

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+h/mercury: Push hand rect masks to the SLAM tracker sinks