fix: Waves tab icon alignment + draft caret follow-ups

src/assets/svgs/wavy-dash-icon.tsx

@@ -1,5 +1,5 @@
 import React from 'react';
-import { StyleProp, ViewStyle } from 'react-native';
+import { StyleProp, View, ViewStyle } from 'react-native';
 import Svg, { Path } from 'react-native-svg';
 
 interface Props {
@@ -12,14 +12,23 @@
  * Wavy dash (〰️) glyph used as the Waves bottom-tab icon. Single Twemoji path,
  * tinted via `color` so it follows the active/inactive tab tint like the other
  * (vector-font) tab icons.
+ *
+ * The layout `style` (the tab bar's shared paddingTop offset) is applied to a
+ * wrapping View, not the <Svg>: react-native-svg does not honor padding the way
+ * the vector-icon <Text> glyphs do, so applying it to <Svg> left the icon ~15px
+ * too high. The wrapper sizes to the SVG and inherits the same top offset, and
+ * the parent tab cell centers it horizontally — keeping the Waves icon aligned
+ * with the other icons across phones and tablets on both iOS and Android.
  */
 const WavyDashIcon = ({ color = '#000000', size = 26, style }: Props) => (
-  <Svg width={size} height={size} viewBox="0 0 36 36" style={style}>
-    <Path
-      fill={color}
-      d="M27 23c-2.589 0-4.005-2.549-5.374-5.014C20.537 16.026 19.411 14 18 14c-1.412 0-2.537 2.026-3.626 3.986C13.004 20.451 11.588 23 9 23c-2.65 0-3.853-2.706-4.914-5.094C3.038 15.546 2.256 14 1 14a1 1 0 0 1 0-2c2.65 0 3.853 2.706 4.914 5.094C6.962 19.453 7.744 21 9 21c1.412 0 2.537-2.026 3.626-3.986C13.996 14.549 15.412 12 18 12c2.589 0 4.005 2.549 5.374 5.014C24.463 18.974 25.589 21 27 21c1.256 0 2.037-1.547 3.086-3.906C31.147 14.706 32.351 12 35 12a1 1 0 1 1 0 2c-1.256 0-2.037 1.546-3.086 3.906C30.853 20.294 29.649 23 27 23z"
-    />
-  </Svg>
+  <View style={style}>
+    <Svg width={size} height={size} viewBox="0 0 36 36">
+      <Path
+        fill={color}
+        d="M27 23c-2.589 0-4.005-2.549-5.374-5.014C20.537 16.026 19.411 14 18 14c-1.412 0-2.537 2.026-3.626 3.986C13.004 20.451 11.588 23 9 23c-2.65 0-3.853-2.706-4.914-5.094C3.038 15.546 2.256 14 1 14a1 1 0 0 1 0-2c2.65 0 3.853 2.706 4.914 5.094C6.962 19.453 7.744 21 9 21c1.412 0 2.537-2.026 3.626-3.986C13.996 14.549 15.412 12 18 12c2.589 0 4.005 2.549 5.374 5.014C24.463 18.974 25.589 21 27 21c1.256 0 2.037-1.547 3.086-3.906C31.147 14.706 32.351 12 35 12a1 1 0 1 1 0 2c-1.256 0-2.037 1.546-3.086 3.906C30.853 20.294 29.649 23 27 23z"
+      />
+    </Svg>
+  </View>
 );
 
 export default WavyDashIcon;

src/components/markdownEditor/view/markdownEditorView.tsx

@@ -139,8 +139,13 @@ const MarkdownEditorView = ({
       // Resume at the user's last caret position instead of jumping to the end
       // of the body (which scrolls a long draft to the bottom). Clamp to the
       // current length in case the body shrank since the caret was saved.
-      const savedCaret = store.getState().editor.caretMap?.[_caretKey] ?? 0;
-      const caret = Math.min(savedCaret, draftBody.length);
+      // When no caret was saved — a legacy draft, one created on another device,
+      // or the first open after this shipped — fall back to the end of the body
+      // (the long-standing behavior). This keeps the feature purely additive and
+      // avoids dropping the auto-focused cursor at position 0 (prepend-on-type).
+      const savedCaret = store.getState().editor.caretMap?.[_caretKey];
+      const caret =
+        typeof savedCaret === 'number' ? Math.min(savedCaret, draftBody.length) : draftBody.length;
       _setTextAndSelection({
         selection: { start: caret, end: caret },
         text: draftBody,
@@ -241,6 +246,19 @@ const MarkdownEditorView = ({
     [],
   );
 
+  // On unmount, flush (not cancel) the pending debounced writes so the latest
+  // caret and body are committed synchronously before the editor tears down.
+  // Cancelling would drop the last cursor move / keystrokes within the debounce
+  // window — leaving a stale caret and body on reopen — and letting them fire
+  // late would write after unmount. Flushing both closes that window cleanly.
+  useEffect(
+    () => () => {
+      _persistCaret.flush();
+      _debouncedOnTextChange.flush();
+    },
+    [_persistCaret, _debouncedOnTextChange],
+  );
+
   const _handleOnSelectionChange = async (event) => {
     bodySelectionRef.current = event.nativeEvent.selection;
     _persistCaret(event.nativeEvent.selection.start);