v0.3.0

[notgull]

• On MacOS, the contents scale is updated when set_buffer() is called, to adapt when the window is on a new screen (mac: Fix layer scale not being updated when contents is updated and window is on a new screen #68).
• Breaking: Split the GraphicsContext type into Context and Surface (Split display/window wrappers #64).
• On Web, cache the document in the Context type (m: Cache document in web frontend #66).
• Breaking: Introduce a new "owned buffer" for no-copy presentation (Owned pixel buffer for no-copy presentation #65).
• Enable support for multi-threaded WASM (Fix multi-threaded Wasm #77).
• Fix buffer resizing on X11 (fix: update width and height when resizing buffer #69).
• Add a set of functions for handling buffer damage (Add Buffer::present_with_damage() and Buffer::age() #99).
• Add a fetch() function for getting the window contents (Add a function for retrieving the window contents #104).
• Bump MSRV to 1.64 (Bump MSRV to 1.64 #81).

[notgull]

I don't think that I've missed anything; I also don't think any of the pending issues are so bad that they should stop a new release.

cc this