wev: add page (#18984)

pages/linux/wev.md

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+# wev
+
+> Print contents of Wayland events.
+> More information: <https://manned.org/wev>.
+
+- Monitor all occurring Wayland events:
+
+`wev`
+
+- Print all events received by a specific Wayland interface:
+
+`wev -f {{wl_keyboard}}`
+
+- Print only specific events received by a Wayland interface:
+
+`wev -f {{wl_keyboard}}:{{key}}`
+
+- Print everything but the specified wayland events:
+
+`wev -F {{wl_keyboard}}:{{key}}`
+
+- Write the `wl_keyboards`'s keymap to a file:
+
+`wev -M {{path/to/file}}`
+
+- Print Wayland globals:
+
+`wev -g`