made a simple password visibility toggler

modified:   Cargo.lock
	modified:   Cargo.toml
	modified:   src/pages/signup.rs
	modified:   style/signup.scss

Cargo.lock

@@ -1296,11 +1296,21 @@ version = "0.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f41f2deec9249d16ef6b1a8442fbe16013f67053797052aa0b7d2f5ebd0f0098"
 dependencies = [
+ "icondata_ai",
  "icondata_bs",
  "icondata_core",
  "icondata_io",
 ]
 
+[[package]]
+name = "icondata_ai"
+version = "0.0.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c8fe5fa2eed7715d5388e046d97f09d3baddd155b487454eb9cda3168c79d4b"
+dependencies = [
+ "icondata_core",
+]
+
 [[package]]
 name = "icondata_bs"
 version = "0.0.8"