Add the BEGIN key to terminfo

Fixes #4101

terminfo/kitty.terminfo

@@ -59,6 +59,12 @@ xterm-kitty|KovIdTTY,
 	ind=^J,
 	indn=\E[%p1%dS,
 	initc=\E]4;%p1%d;rgb\:%p2%{255}%*%{1000}%/%2.2X/%p3%{255}%*%{1000}%/%2.2X/%p4%{255}%*%{1000}%/%2.2X\E\\,
+	kBEG=\E[1;2E,
+	kBEG3=\E[1;3E,
+	kBEG4=\E[1;4E,
+	kBEG5=\E[1;5E,
+	kBEG6=\E[1;6E,
+	kBEG7=\E[1;7E,
 	kDC=\E[3;2~,
 	kDC3=\E[3;3~,
 	kDC4=\E[3;4~,
@@ -121,6 +127,7 @@ xterm-kitty|KovIdTTY,
 	kUP7=\E[1;7A,
 	ka1=,
 	ka3=,
+	kbeg=\EOE,
 	kbs=\177,
 	kc1=,
 	kc3=,