library: client modules end in -client, like protocols end in -protocol

display-client and input-client (files and module names), so a service,
its wire contract, and its client never share a name: `display` the
service, `display-protocol` the contract, `display-client` a program's
view of it. The nine consumers' imports and their packages' declared
lists follow (regenerated from the source scan); build-support's
module_homes table carries the new names.

system/drivers/ps2-bus/build.zig

@@ -17,7 +17,7 @@ pub fn build(b: *std.Build) void {
         .name = "ps2-keyboard",
         .root_source_file = b.path("keyboard.zig"),
         .imports = &.{
-            "acpi-ids", "driver", "input", "input-protocol", "ipc", "logging", "memory",
+            "acpi-ids", "driver", "input-client", "input-protocol", "ipc", "logging", "memory",
             "process", "time", "xkeyboard-config",
         },
     });
@@ -27,7 +27,7 @@ pub fn build(b: *std.Build) void {
         .name = "ps2-mouse",
         .root_source_file = b.path("mouse.zig"),
         .imports = &.{
-            "acpi-ids", "driver", "input", "input-protocol", "ipc", "logging", "memory",
+            "acpi-ids", "driver", "input-client", "input-protocol", "ipc", "logging", "memory",
             "process", "time",
         },
     });

system/drivers/ps2-bus/keyboard.zig

@@ -19,7 +19,7 @@ const device = @import("driver");
 const ipc = @import("ipc");
 const process = @import("process");
 const time = @import("time");
-const input = @import("input");
+const input = @import("input-client");
 const memory = @import("memory");
 const logging = @import("logging");
 const xkb = @import("xkeyboard-config");

system/drivers/ps2-bus/mouse.zig

@@ -19,7 +19,7 @@ const device = @import("driver");
 const ipc = @import("ipc");
 const process = @import("process");
 const time = @import("time");
-const input = @import("input");
+const input = @import("input-client");
 const memory = @import("memory");
 const logging = @import("logging");
 const ps2 = @import("ps2-library.zig");