Write some amount of documentation

src/page.rs

@@ -26,16 +26,16 @@ impl Page {
     /// Grid position (col, row) for each page
     /// Layout:
     ///         col 0      col 1       col 2
-    /// row 0   Options    Patterns    Help
-    /// row 1   Dict       Sequencer   Engine
+    /// row 0   Dict       Patterns    Options
+    /// row 1   Help       Sequencer   Engine
     pub const fn grid_pos(self) -> (i8, i8) {
         match self {
-            Page::Options => (0, 0),
-            Page::Dict => (0, 1),
-            Page::Main => (1, 1),
+            Page::Dict => (0, 0),
+            Page::Help => (0, 1),
             Page::Patterns => (1, 0),
+            Page::Main => (1, 1),
+            Page::Options => (2, 0),
             Page::Engine => (2, 1),
-            Page::Help => (2, 0),
         }
     }