Allow input capture & emulation being disabled (#158)

* Input capture and emulation can now be disabled and will prompt the user to enable again.

* Improved error handling to deliver more useful error messages

Cargo.lock

@@ -1194,8 +1194,8 @@ dependencies = [
 name = "input-capture"
 version = "0.1.0"
 dependencies = [
- "anyhow",
  "ashpd",
+ "async-trait",
  "core-graphics",
  "futures",
  "futures-core",
@@ -1207,6 +1207,7 @@ dependencies = [
  "tempfile",
  "thiserror",
  "tokio",
+ "tokio-util",
  "wayland-client",
  "wayland-protocols",
  "wayland-protocols-wlr",
@@ -1244,6 +1245,7 @@ dependencies = [
  "futures-core",
  "log",
  "num_enum",
+ "reis",
  "serde",
  "thiserror",
 ]
@@ -1327,6 +1329,7 @@ dependencies = [
  "slab",
  "thiserror",
  "tokio",
+ "tokio-util",
  "toml",
 ]
 
@@ -2048,6 +2051,19 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "tokio-util"
+version = "0.7.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9cf6b47b3771c49ac75ad09a6162f53ad4b8088b76ac60e8ec1455b31a189fe1"
+dependencies = [
+ "bytes",
+ "futures-core",
+ "futures-sink",
+ "pin-project-lite",
+ "tokio",
+]
+
 [[package]]
 name = "toml"
 version = "0.8.14"