Backup shortcuts (#144)

* Add initial option to back up shortcuts

* Show list of backups

* Reload backups on change

* Restore backups

* Improve UX of backup ui

* Reorganize ui

* Update version in cargo.toml

* Update flatpak description

* Update cargo-lock.json

Cargo.lock

@@ -148,9 +148,10 @@ checksum = "0d8c1fef690941d3e7788d328517591fecc684c084084702d6ff1641e993699a"
 
 [[package]]
 name = "boilr"
-version = "1.3.6"
+version = "1.3.7"
 dependencies = [
  "base64",
+ "chrono",
  "config",
  "copypasta",
  "dashmap",
@@ -269,6 +270,19 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "chrono"
+version = "0.4.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "670ad68c9088c2a963aaa298cb369688cf3f9465ce5e2d4ca10e6e0098a1ce73"
+dependencies = [
+ "libc",
+ "num-integer",
+ "num-traits 0.2.15",
+ "time",
+ "winapi",
+]
+
 [[package]]
 name = "clipboard-win"
 version = "3.1.1"
@@ -2542,6 +2556,16 @@ dependencies = [
  "weezl",
 ]
 
+[[package]]
+name = "time"
+version = "0.1.43"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca8a50ef2360fbd1eeb0ecd46795a87a19024eb4b53c5dc916ca1fd95fe62438"
+dependencies = [
+ "libc",
+ "winapi",
+]
+
 [[package]]
 name = "tinyvec"
 version = "1.6.0"