refactor(leaflet-map): rename syncFit -> applyFit

Mirrors the sibling applyCss(): both run on connect and on every relevant
attribute change. The prop set-handler that calls it becomes reapplyFit, the
same relinkCss -> applyCss shape.

src/elements/leaflet-map.ts

@@ -42,13 +42,13 @@ function relinkCss(_map: LMap, _value: string, el: HTMLElement): void {
 }
 
 interface FitHost extends HTMLElement {
-  syncFit(): void;
+  applyFit(): void;
 }
 
 // The fit-* attributes aren't Leaflet options either: they ask the element to
 // frame every point/bounds layer itself. Any change just re-runs that.
-function applyFit(_map: LMap, _value: unknown, el: HTMLElement): void {
-  (el as FitHost).syncFit();
+function reapplyFit(_map: LMap, _value: unknown, el: HTMLElement): void {
+  (el as FitHost).applyFit();
 }
 
 // Anything with a position we can fold into a bounding box -- markers,
@@ -197,16 +197,16 @@ const PROPS: {
   cssIntegrity: positional(str(DEFAULT_CSS_INTEGRITY, { set: relinkCss })),
   cssCrossorigin: positional(str('', { set: relinkCss })),
 
-  // Not Leaflet options -- see syncFit() below. With `fit-to-markers` present
+  // Not Leaflet options -- see applyFit() below. With `fit-to-markers` present
   // the map ignores lat/lng/zoom and frames every point/bounds layer that has
   // registered. It reframes only when a new component registers (initial load
   // and later additions) -- panning, zooming, opening a popup and removing a
   // marker all leave the view untouched. `fit-padding` is the pixel gutter
   // kept around the bounds; `fit-max-zoom` caps how far it zooms in (useful
   // when a single marker would otherwise snap to max zoom).
-  fitToMarkers: positional(bool<LMap>(false, { set: applyFit })),
-  fitPadding: positional(num<LMap>(20, { set: applyFit })),
-  fitMaxZoom: positional(num<LMap>(Infinity, { set: applyFit })),
+  fitToMarkers: positional(bool<LMap>(false, { set: reapplyFit })),
+  fitPadding: positional(num<LMap>(20, { set: reapplyFit })),
+  fitMaxZoom: positional(num<LMap>(Infinity, { set: reapplyFit })),
 };
 const Base: LeafletElementConstructor<LMap, typeof PROPS> = WithProps(PROPS, { attach: 'none' });
 
@@ -217,7 +217,7 @@ const Base: LeafletElementConstructor<LMap, typeof PROPS> = WithProps(PROPS, { a
  * CSS `<link>`), runs a `ResizeObserver` → `invalidateSize()`, and treats its
  * `css-*` attributes as describing the shadow stylesheet. With `fit-to-markers`
  * set it frames every registered point/bounds layer instead of honouring
- * `lat`/`lng`/`zoom` — see `syncFit()`.
+ * `lat`/`lng`/`zoom` — see `applyFit()`.
  */
 export default class LeafletMapElement extends Base {
   declare readonly leafletObject?: LMap;
@@ -251,7 +251,7 @@ export default class LeafletMapElement extends Base {
     this.addEventListener('leaflet-add-layer', this.#onAddLayer);
     this.addEventListener('leaflet-remove-layer', this.#onRemoveLayer);
 
-    this.syncFit();
+    this.applyFit();
   }
 
   disconnectedCallback(): void {
@@ -303,11 +303,12 @@ export default class LeafletMapElement extends Base {
     Icon.Default.imagePath = url?.replace(/\/[^/]+$/u, '/images/');
   }
 
-  // Called on connect and whenever a fit-* attribute changes. Records whether
-  // framing is on (read by #onRegister) and requests an immediate (re)frame
-  // when it is. No Leaflet event subscriptions: the only reframe trigger is a
-  // new component registering -- see #onRegister.
-  syncFit(): void {
+  // Called on connect and whenever a fit-* attribute changes -- the sibling of
+  // applyCss() above. Records whether framing is on (read by #onRegister) and
+  // requests an immediate (re)frame when it is. No Leaflet event
+  // subscriptions: the only reframe trigger is a new component registering --
+  // see #onRegister.
+  applyFit(): void {
     if (!this.leafletObject) return;
     this.#fitActive = this.fitToMarkers;
     if (this.#fitActive) this.#scheduleFit();