feat(cli): let a build name its own version

A nightly printed the same 19.0.0 as the release it followed, so a bug
report could not say which one it came from. SOULSEEK_RS_VERSION at
compile time replaces the crate version in --version, the TUI and the
daemon status.

soulseek-rs/src/daemon/server/mod.rs

@@ -522,7 +522,7 @@ impl Daemon {
     fn identify(&self) -> AuthResult {
         AuthResult {
             protocol: PROTOCOL_VERSION,
-            daemon_version: env!("CARGO_PKG_VERSION").to_string(),
+            daemon_version: crate::cli::VERSION.to_string(),
             username: self.session.username(),
         }
     }
@@ -532,7 +532,7 @@ impl Daemon {
         DaemonStatus {
             username: self.session.username(),
             server: self.server.clone(),
-            daemon_version: env!("CARGO_PKG_VERSION").to_string(),
+            daemon_version: crate::cli::VERSION.to_string(),
             protocol: PROTOCOL_VERSION,
             listen_port: self.session.listen_port(),
             shared_folders: folders,