First try of implementing database

Cargo.toml

@@ -16,3 +16,11 @@ relm4-icons = { version = "0.6.0", features = ["plus"] }
 
 walkdir = "2" # For traversing directories recursively
 opener = "0.6.1" # For opening files with the systems default application
+
+sqlx = { version = "0.7", features = [ "runtime-tokio", "sqlite", "migrate", "macros" ] }
+tokio = { version = "1", features = ["full"] }
+blake3 = "1.5.0"
+dotenvy = "0.15.7"
+
+[profile.dev.package.sqlx-macros]
+opt-level = 3