Rename 'btn' to 'button' for consistency in chore-tracker YAML and generator script

esphome/chore-tracker/generate.py

@@ -254,7 +254,7 @@ lvgl:
   touchscreens:
     - touch
   theme:
-    btn:
+    button:
       radius: 20
       border_width: 0
   pages:
@@ -287,7 +287,7 @@ def _gen_lvgl_pages(kids: list) -> str:
         x  = start_x + i * (btn_w + 20)
         ks = kid_slug(kid)
         home_btns += f"""\
-        - btn:
+        - button:
             id: home_btn_{ks}
             x: {x}
             y: {btn_y}
@@ -343,7 +343,7 @@ def _gen_lvgl_pages(kids: list) -> str:
             text: "Tap a name to check off chores"
             text_font: font_small
             text_color: 0xB2BEC3
-        - btn:
+        - button:
             x: 640
             y: 424
             width: 148
@@ -385,7 +385,7 @@ def _gen_lvgl_pages(kids: list) -> str:
             icon_y  = -(card_h // 4)
             label_y =  card_h // 8
             card_widgets += f"""\
-        - btn:
+        - button:
             id: card_{e}
             x: {x}
             y: {y}
@@ -484,7 +484,7 @@ def _gen_lvgl_pages(kids: list) -> str:
                   text: ""
                   text_font: font_small
                   text_color: 0xFFFFFF
-              - btn:
+              - button:
                   x: 14
                   y: 364
                   width: {sidebar_w - 28}
@@ -500,7 +500,7 @@ def _gen_lvgl_pages(kids: list) -> str:
                         text: "↺  Reset"
                         text_color: 0xFFFFFF
                         text_font: font_small
-              - btn:
+              - button:
                   x: 14
                   y: 420
                   width: {sidebar_w - 28}