fix: broaden Gboard multi-line paste workaround to all mobile browsers

The existing workaround for Gboard clipboard history stripping line
breaks only applied to mobile WebViews. However, the same issue occurs
on regular mobile browsers (e.g., Chrome on Android with Gboard).

Removed the isWebView check so the manual multi-line paste handling
applies to all mobile environments, not just WebViews.

Author: Algorithm5838

src/lib/components/common/RichTextInput.svelte

@@ -1005,20 +1005,15 @@
 									return true;
 								}
 
-								// Workaround for mobile WebViews that strip line breaks when pasting from
-								// clipboard suggestions (e.g., Gboard clipboard history).
+								// Workaround for mobile browsers/WebViews that strip line breaks when
+								// pasting from clipboard suggestions (e.g., Gboard clipboard history).
+								// This applies to all mobile environments, not just WebViews, because
+								// Gboard on regular mobile Chrome exhibits the same issue.
 								const isMobile = /Android|iPhone|iPad|iPod|Windows Phone/i.test(
 									navigator.userAgent
 								);
-								const isWebView =
-									typeof window !== 'undefined' &&
-									(/wv/i.test(navigator.userAgent) || // Standard Android WebView flag
-										(navigator.userAgent.includes('Android') &&
-											!navigator.userAgent.includes('Chrome')) || // Other generic Android WebViews
-										(navigator.userAgent.includes('Safari') &&
-											!navigator.userAgent.includes('Version'))); // iOS WebView (in-app browsers)
-
-								if (isMobile && isWebView && plainText.includes('\n')) {
+
+								if (isMobile && plainText.includes('\n')) {
 									// Manually deconstruct the pasted text and insert it with hard breaks
 									// to preserve the multi-line formatting.
 									const { state, dispatch } = view;