wezterm.terminfo: add statusline entries

nvim uses these to set the title string; really, it is setting the
status line, but it has an assumed fallback for xterm that redefines the
status line update operations in terms of setting the title of the xterm
window.

Let's ensure that our terminfo has these entries defined, as the nvim
fallback currently looks for `xterm` in the value of $TERM to decide
whether the fallback is appropriate, and that test does not pass when
the user has set term=wezterm.

refs: https://github.com/neovim/neovim/issues/20706
refs: https://github.com/wez/wezterm/issues/2635

See also: https://codeberg.org/dnkl/foot/pulls/243/files,
https://codeberg.org/dnkl/foot/issues/242,
https://github.com/alacritty/alacritty/issues/1636

termwiz/data/wezterm.terminfo

@@ -12,8 +12,19 @@
 #       function to a block or underline.
 # Se resets the cursor style to the terminal power-on default.
 # Smulx defines kitty style underline escape sequence support
+#
+# hs, dsl, fsl, tsl are used by nvim to amend the "status line".
+# These are not normally present for xterm and have assumed values
+# when TERM==xterm. When using this terminfo file that assumption is not
+# true and that functionality is broken.
+# We follow the foot's terminfo settings for these, based on
+# https://codeberg.org/dnkl/foot/pulls/243/files
+# although we use OSC 0 for the title rather than OSC 2.
+# https://github.com/neovim/neovim/issues/20706
+# https://github.com/wez/wezterm/issues/2635
 wezterm|Wez's terminal emulator,
   Tc,
+  hs,
   sitm=\E[3m, ritm=\E[23m,
   Cr=\E]112\007, Cs=\E]12;%p1%s\007, Ms=\E]52;%p1%s;%p2%s\007, Se=\E[2\sq,
   Ss=\E[%p1%d\sq,
@@ -30,8 +41,9 @@ wezterm|Wez's terminal emulator,
 	cud=\E[%p1%dB, cud1=\n, cuf=\E[%p1%dC, cuf1=\E[C,
 	cup=\E[%i%p1%d;%p2%dH, cuu=\E[%p1%dA, cuu1=\E[A,
 	cvvis=\E[?12;25h, dch=\E[%p1%dP, dch1=\E[P, dim=\E[2m,
-	dl=\E[%p1%dM, dl1=\E[M, ech=\E[%p1%dX, ed=\E[J, el=\E[K,
+	dl=\E[%p1%dM, dl1=\E[M, dsl=\E]2;\E\\,
-	el1=\E[1K, flash=\E[?5h$<100/>\E[?5l, home=\E[H,
+	ech=\E[%p1%dX, ed=\E[J, el=\E[K,
+	el1=\E[1K, flash=\E[?5h$<100/>\E[?5l, fsl=\E\\, home=\E[H,
 	hpa=\E[%i%p1%dG, ht=^I, hts=\EH, ich=\E[%p1%d@,
 	il=\E[%p1%dL, il1=\E[L, ind=\n, 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\\,
@@ -71,7 +83,7 @@ wezterm|Wez's terminal emulator,
 	sgr0=\E(B\E[m, sitm=\E[3m, smacs=\E(0, smam=\E[?7h,
 	smcup=\E[?1049h\E[22;0;0t, smir=\E[4h, smkx=\E[?1h\E=,
 	smm=\E[?1034h, smso=\E[7m, smul=\E[4m, smxx=\E[9m,
-	tbc=\E[3g, u6=\E[%i%d;%dR, u7=\E[6n, u8=\E[?%[;0123456789]c,
+	tbc=\E[3g, tsl=\E]0;, u6=\E[%i%d;%dR, u7=\E[6n, u8=\E[?%[;0123456789]c,
 	u9=\E[c, vpa=\E[%i%p1%dd, XM=\E[?1003;1006%?%p1%{1}%=%th%el%;,
 	kmous=\E[<, XM=\E[?1006;1000%?%p1%{1}%=%th%el%;,
 	xm=\E[<%i%p3%d;%p1%d;%p2%d;%?%p4%tM%em%;,