fix: Backspace while typing with a Japanese or other IME commits or duplicates the composing text (#33245)

Pressing Backspace inside an unconfirmed IME composition in the chat input ended the composition, so the next keystrokes started a new one and the text appeared twice. This started in 0.12.4, when the editor library picked up a release that treats every deletion as a Backspace key press, including deletions the IME makes inside a composition, and the editor's Backspace handling then disturbs the composition. Pinning that library to the last release without this behaviour restores normal IME editing.

Fixes #33223

package-lock.json

@@ -94,7 +94,7 @@
 				"prosemirror-schema-list": "^1.5.1",
 				"prosemirror-state": "^1.4.3",
 				"prosemirror-tables": "^1.7.1",
-				"prosemirror-view": "^1.34.3",
+				"prosemirror-view": "1.42.6",
 				"pyodide": "^314.0.3",
 				"shiki": "^4.0.1",
 				"socket.io-client": "^4.8.3",
@@ -12453,9 +12453,9 @@
 			}
 		},
 		"node_modules/prosemirror-view": {
-			"version": "1.42.8",
-			"resolved": "https://registry.npmjs.org/prosemirror-view/-/prosemirror-view-1.42.8.tgz",
-			"integrity": "sha512-ftDZjCs9AjAekXmCfJRn2U3IdlRCl0Yc4tZT1/jJWCsz4DiSifEBXtWmpJpw/4f1Rg328uAUQ+u2lCJ0+AVZkw==",
+			"version": "1.42.6",
+			"resolved": "https://registry.npmjs.org/prosemirror-view/-/prosemirror-view-1.42.6.tgz",
+			"integrity": "sha512-3g25f6hKV2bBxo3puH3EcYWmmVNSH0iWmNsMVT7sugDSpA025jgpOLarcDWr39SdzPjYMaiYtRdNtXialPSjEQ==",
 			"license": "MIT",
 			"dependencies": {
 				"prosemirror-model": "^1.25.12",

package.json

@@ -145,7 +145,7 @@
 		"prosemirror-schema-list": "^1.5.1",
 		"prosemirror-state": "^1.4.3",
 		"prosemirror-tables": "^1.7.1",
-		"prosemirror-view": "^1.34.3",
+		"prosemirror-view": "1.42.6",
 		"pyodide": "^314.0.3",
 		"shiki": "^4.0.1",
 		"socket.io-client": "^4.8.3",