~novakane/zelbar 

build: Fix tests not running

common/flags: Update to latest upstream

ci: Update to zig 0.11

build: Fix if build_root.path is null

Update to zig 0.11

README: Add a link to zelbar-river

data: Remove pointer arg in render()

This was not needed, remove the need for @ptrCast().

Refactor

Lot of things changed (yes it should have been made in multiple commit):
  * Removed scale for now, it was really buggy
  * Bar: Move everything that was related to wayland to Backend.zig.
  * Backend: Move the creation, configuration and rendering of the
    surface in Surface.send_frame().
  * Add some doc comments
  * Cleanup

Backend: Cleanup global interfaces versions

Backend: Remove Seat name

No need to allocate memory for something we don't use.

README: Add more buildings requirements

Render only in response to frame callbacks

Backend: Rewrite BufferPool

deps: Update zig-wayland

common: Update flags to latest upstream

ci: Update Wayland to 1.21

Update to zig 0.10

code: Cleanup

Backend: Use null data instead of undefined

Implement pointers events and  action on click

New format:
  %{A:action}
  Send <action> to STDOUT
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