feat(shortcuts): add helper written in egui

This commit adds a simple egui helper application which shows a list of
shortcuts defined in a user's whkdrc file. Parsing AHK files is not
supported.

In addition to listing out shortcuts defined in the whkdrc file, the top
line allows users to add filter a filter to narrow down the list of
commands and key bindings to the ones they are interested in.

A new komorebic command "toggle-shortcuts" has been introduced which
will first attempt to kill "komorebi-shortcuts.exe", and then exit if
the kill signal was successful (ie. a process was closed), or proceed to
open "komorebi-shortcuts.exe" if the kill signal was not successful (ie.
no process was closed, so we should open one).

"komorebi-shortcuts.exe" has been added as a floating application in
lib.rs to allow for users to use the "komorebic move" command to
manipulate its position via their existing keyboard bindings.

Cargo.lock

@@ -180,6 +180,12 @@ dependencies = [
  "alloc-no-stdlib",
 ]
 
+[[package]]
+name = "allocator-api2"
+version = "0.2.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "683d7910e743518b0e34f1186f92494becacb047c7b6bf616c96772180fef923"
+
 [[package]]
 name = "android-activity"
 version = "0.6.0"
@@ -932,6 +938,16 @@ dependencies = [
  "phf_codegen 0.11.3",
 ]
 
+[[package]]
+name = "chumsky"
+version = "0.9.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8eebd66744a15ded14960ab4ccdbfb51ad3b81f51f3f04a80adac98c985396c9"
+dependencies = [
+ "hashbrown 0.14.5",
+ "stacker",
+]
+
 [[package]]
 name = "clap"
 version = "4.5.37"
@@ -2320,6 +2336,16 @@ version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
 
+[[package]]
+name = "hashbrown"
+version = "0.14.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e5274423e17b7c9fc20b6e7e208532f9b19825d82dfd615708b70edd83df41f1"
+dependencies = [
+ "ahash",
+ "allocator-api2",
+]
+
 [[package]]
 name = "hashbrown"
 version = "0.15.2"
@@ -3027,6 +3053,16 @@ dependencies = [
  "windows-core 0.61.0",
 ]
 
+[[package]]
+name = "komorebi-shortcuts"
+version = "0.1.0"
+dependencies = [
+ "dirs 6.0.0",
+ "eframe",
+ "whkd-core",
+ "whkd-parser",
+]
+
 [[package]]
 name = "komorebi-themes"
 version = "0.1.37"
@@ -4617,6 +4653,15 @@ dependencies = [
  "syn 2.0.100",
 ]
 
+[[package]]
+name = "psm"
+version = "0.1.26"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6e944464ec8536cd1beb0bbfd96987eb5e3b72f2ecdafdc5c769a37f1fa2ae1f"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "qoi"
 version = "0.4.1"
@@ -5564,6 +5609,19 @@ version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a8f112729512f8e442d81f95a8a7ddf2b7c6b8a1a6f509a95864142b30cab2d3"
 
+[[package]]
+name = "stacker"
+version = "0.1.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cddb07e32ddb770749da91081d8d0ac3a16f1a569a18b20348cd371f5dead06b"
+dependencies = [
+ "cc",
+ "cfg-if 1.0.0",
+ "libc",
+ "psm",
+ "windows-sys 0.52.0",
+]
+
 [[package]]
 name = "starship-battery"
 version = "0.10.1"
@@ -6752,6 +6810,21 @@ dependencies = [
  "winsafe",
 ]
 
+[[package]]
+name = "whkd-core"
+version = "0.2.9"
+source = "git+https://github.com/LGUG2Z/whkd?rev=29df24ff2dd715655b0366bd2a598837c699a8e9#29df24ff2dd715655b0366bd2a598837c699a8e9"
+
+[[package]]
+name = "whkd-parser"
+version = "0.2.9"
+source = "git+https://github.com/LGUG2Z/whkd?rev=29df24ff2dd715655b0366bd2a598837c699a8e9#29df24ff2dd715655b0366bd2a598837c699a8e9"
+dependencies = [
+ "chumsky",
+ "thiserror 2.0.12",
+ "whkd-core",
+]
+
 [[package]]
 name = "win32-display-data"
 version = "0.1.0"