hyprland: Fix mouse binds, hl.bindm does not exist

Hyprland's lua API only registers hl.bind; there is no separate
hl.bindm. The settings.bindm key rendered as a literal hl.bindm(...)
call, which errored with "attempt to call a nil value" at runtime.
Fold the mouse binds into settings.bind with { mouse = true }, per
the wiki's own example config.

hosts/pinwheel/modules/hyprland/default.nix

@@ -386,25 +386,24 @@ in
                   (lib.generators.mkLuaInline ''hl.dsp.exec_cmd("${magnifier} --reset")'')
                 ];
               }
-            ];
 
-          bindm = [
-            # mouse movements
-            {
-              _args = [
-                "${mod} + mouse:272" # left click
-                (lib.generators.mkLuaInline "hl.dsp.window.drag()")
-                { mouse = true; }
-              ];
-            }
-            {
-              _args = [
-                "${mod} + mouse:273" # right click
-                (lib.generators.mkLuaInline "hl.dsp.window.resize()")
-                { mouse = true; }
-              ];
-            }
-          ];
+              # mouse movements: hyprland's lua API has no separate `bindm`,
+              # mouse binds are plain `hl.bind` with `{ mouse = true }`.
+              {
+                _args = [
+                  "${mod} + mouse:272" # left click
+                  (lib.generators.mkLuaInline "hl.dsp.window.drag()")
+                  { mouse = true; }
+                ];
+              }
+              {
+                _args = [
+                  "${mod} + mouse:273" # right click
+                  (lib.generators.mkLuaInline "hl.dsp.window.resize()")
+                  { mouse = true; }
+                ];
+              }
+            ];
         };
       };