Use special pin keyboard

This helps muscle memory

data/keyboards/pin/us.yaml

@@ -0,0 +1,20 @@
+---
+margins: { top: 4, side: 0, bottom: 4 }
+outlines:
+    default: { width: 120, height: 52 }
+
+views:
+    base:
+        - "1 2 3"
+        - "4 5 6"
+        - "7 8 9"
+        - "BackSpace 0 Return"
+
+buttons:
+    BackSpace:
+        icon: "edit-clear-symbolic"
+        action: erase
+    Return:
+        icon: "key-enter"
+        keysym: "Return"
+

src/data/loading.rs

@@ -168,9 +168,9 @@ fn get_directory_string(
         None => match content_purpose {
             ContentPurpose::Number => Special("number"),
             ContentPurpose::Digits => Special("number"),
-            ContentPurpose::Pin => Special("number"),
             ContentPurpose::Phone => Special("number"),
             ContentPurpose::Terminal => Special("terminal"),
+            ContentPurpose::Pin => Special("pin"),
             _ => Default,
         },
         Some(overlay) => Special(overlay),

src/resources.rs

@@ -93,6 +93,7 @@ static KEYBOARDS: &[(&'static str, &'static str)] = &[
 
     // Others
     ("number/us", include_str!("../data/keyboards/number/us.yaml")),
+    ("pin/us", include_str!("../data/keyboards/pin/us.yaml")),
 
     // Terminal
     ("terminal/fr", include_str!("../data/keyboards/terminal/fr.yaml")),

tests/meson.build

@@ -100,6 +100,7 @@ foreach layout : [
     # Block: Not languages.
     'emoji/us',
     'number/us',
+    'pin/us',
 ]
     extra = []
     if layout.startswith('emoji/')