Library improvements (#126)

* Base impl

* Add grouping

* Fix some styling things

* Run linter

* add missing features

* add dev mode

---------

Co-authored-by: Geometrically <18202329+Geometrically@users.noreply.github.com>
Co-authored-by: Jai A <jaiagr+gpg@pm.me>

theseus/src/state/settings.rs

@@ -26,6 +26,8 @@ pub struct Settings {
     pub max_concurrent_writes: usize,
     pub version: u32,
     pub collapsed_navigation: bool,
+    #[serde(default)]
+    pub developer_mode: bool,
 }
 
 impl Default for Settings {
@@ -43,6 +45,7 @@ impl Default for Settings {
             max_concurrent_writes: 10,
             version: CURRENT_FORMAT_VERSION,
             collapsed_navigation: false,
+            developer_mode: false,
         }
     }
 }