Update formatting to use 4‑space indentation

- Adjust rustfmt.toml to set tab_spaces = 4.
- Reformat imports, struct definitions, function bodies, and match arms
  across the project to match the new style (aligned fields, added
  spacing, etc.).
- Ensure all code complies with the updated rustfmt settings.

src/app/states/skirmish_states/units/unit_trait.rs

@@ -1,90 +1,90 @@
 use crate::app::states::skirmish_states::{Players, tasks::Tasks};
 use ratatui::{
-  style::Stylize,
-  text::{Line, Span},
+    style::Stylize,
+    text::{Line, Span},
 };
 use std::collections::VecDeque;
 
 pub trait Unit {
-  fn is_unit(&self) -> bool {
-    true
-  }
-
-  fn get_owner(&self) -> Players;
-
-  fn get_tag(&self) -> char;
-
-  fn get_name(&self) -> &'static str;
-
-  fn get_hp(&self) -> u16;
-
-  fn get_max_hp(&self) -> u16;
-
-  fn get_can_dig(&self) -> bool;
-
-  fn get_can_build(&self) -> bool {
-    false
-  }
-
-  fn get_digging_power(&self) -> f32;
-
-  fn get_coords(&self) -> (usize, usize);
-
-  fn set_coords(&mut self, coords: (usize, usize));
-
-  fn get_ref_tasks(&self) -> &VecDeque<Tasks>;
-
-  fn get_mut_tasks(&mut self) -> &mut VecDeque<Tasks>;
-
-  fn set_task(&mut self, task: Tasks);
-
-  fn get_tasks_formatted(&self) -> Vec<Line<'_>>;
-
-  fn base_text(&self) -> Vec<Line<'_>> {
-    let owner: Span<'_> = self.get_owner().get_span();
-    let hp: u16 = self.get_hp();
-    let max_hp: u16 = self.get_max_hp();
-    let hp_percent: u16 = hp * 100 / max_hp;
-    let can_dig: bool = self.get_can_dig();
-    let digging_power: f32 = self.get_digging_power();
-    let have_any_tasks: bool = self.get_ref_tasks().is_empty();
-    let tasks: Vec<Line<'_>> = self.get_tasks_formatted();
-
-    let mut lines: Vec<Line<'_>> = Vec::from([
-      Line::from_iter(["Owner: ".gray(), owner]),
-      Line::from_iter([
-        "HP: ".gray(),
-        hp.green(),
-        "/".gray(),
-        max_hp.green(),
-        " ( ".gray(),
-        hp_percent.green(),
-        "% )".gray(),
-      ]),
-    ]);
-
-    if can_dig {
-      lines.push(Line::from_iter([
-        "Digging power: ".gray(),
-        digging_power.green(),
-      ]));
+    fn is_unit(&self) -> bool {
+        true
     }
 
-    if self.get_can_build() {
-      lines.push(Line::from("Can build: Yes").green());
+    fn get_owner(&self) -> Players;
+
+    fn get_tag(&self) -> char;
+
+    fn get_name(&self) -> &'static str;
+
+    fn get_hp(&self) -> u16;
+
+    fn get_max_hp(&self) -> u16;
+
+    fn get_can_dig(&self) -> bool;
+
+    fn get_can_build(&self) -> bool {
+        false
     }
 
-    if !have_any_tasks {
-      lines.push(Line::from("Tasks Queue: ".gray()));
-      for task in tasks {
-        lines.push(task);
-      }
+    fn get_digging_power(&self) -> f32;
+
+    fn get_coords(&self) -> (usize, usize);
+
+    fn set_coords(&mut self, coords: (usize, usize));
+
+    fn get_ref_tasks(&self) -> &VecDeque<Tasks>;
+
+    fn get_mut_tasks(&mut self) -> &mut VecDeque<Tasks>;
+
+    fn set_task(&mut self, task: Tasks);
+
+    fn get_tasks_formatted(&self) -> Vec<Line<'_>>;
+
+    fn base_text(&self) -> Vec<Line<'_>> {
+        let owner: Span<'_> = self.get_owner().get_span();
+        let hp: u16 = self.get_hp();
+        let max_hp: u16 = self.get_max_hp();
+        let hp_percent: u16 = hp * 100 / max_hp;
+        let can_dig: bool = self.get_can_dig();
+        let digging_power: f32 = self.get_digging_power();
+        let have_any_tasks: bool = self.get_ref_tasks().is_empty();
+        let tasks: Vec<Line<'_>> = self.get_tasks_formatted();
+
+        let mut lines: Vec<Line<'_>> = Vec::from([
+            Line::from_iter(["Owner: ".gray(), owner]),
+            Line::from_iter([
+                "HP: ".gray(),
+                hp.green(),
+                "/".gray(),
+                max_hp.green(),
+                " ( ".gray(),
+                hp_percent.green(),
+                "% )".gray(),
+            ]),
+        ]);
+
+        if can_dig {
+            lines.push(Line::from_iter([
+                "Digging power: ".gray(),
+                digging_power.green(),
+            ]));
+        }
+
+        if self.get_can_build() {
+            lines.push(Line::from("Can build: Yes").green());
+        }
+
+        if !have_any_tasks {
+            lines.push(Line::from("Tasks Queue: ".gray()));
+            for task in tasks {
+                lines.push(task);
+            }
+        }
+
+        lines
     }
 
-    lines
-  }
-
-  fn text(&self) -> Vec<Line<'_>> {
-    self.base_text()
-  }
+    fn text(&self) -> Vec<Line<'_>> {
+        self.base_text()
+    }
 }