Revert "Alt+Enter: clear filter and exit filter prompt"

This reverts commit 2232772db4.

src/nnn.c

@@ -2590,7 +2590,7 @@ static int filterentries(char *path, char *lastname)
 #endif
 		case 27: /* Exit filter mode on Escape and Alt+key */
 			if (handle_alt_key(ch) != ERR) {
-				if (*ch == 13) { /* Handle Alt + Ret */
+				if (*ch == 27) { /* Handle Alt + Esc */
 					if (wln[1]) {
 						ln[REGEX_MAX - 1] = ln[1];
 						ln[1] = wln[1] = '\0';
@@ -4138,7 +4138,7 @@ static void show_help(const char *path)
 		"a1-4  Context 1-4%-7c(Sh)Tab  Cycle context\n"
 		  "c/  Filter%-17c^N  Toggle type-to-nav\n"
 		"aEsc  Exit prompt%-12c^L  Redraw/clear prompt\n"
-		  "c0  Lock%-14cAlt+Ret  Clear filter, redraw\n"
+		  "c0  Lock%-14cAlt+Esc  Clear filter, redraw\n"
 		  "c?  Help, conf%-13c^G  QuitCD\n"
 		  "cq  Quit context%-7c^Q (Q)  Quit (with err)\n"
 		"1FILES\n"