open https://gitlab.synchro.net/main/sbbs/-/issues/218

The up/down arrow keys are behaving incorrectly in UIFC. The list is not redrawing properly.

Example script:
```javascript
"use strict"
load("sbbsdefs.js");
load("uifcdefs.js");

uifc.init();

var ctx = new uifc.list.CTX();

var menuTitles = [];
menuTitles.push("test1");
menuTitles.push("test2");
menuTitles.push("test3");
menuTitles.push("test4");
menuTitles.push("-----");

var selection = uifc.list(WIN_SAV, "Testing", menuTitles, ctx);
uifc.bail();
writeln("selected " + selection);
```

Possibly caused by the commits on January 29

https://gitlab.synchro.net/main/sbbs/-/commit/e5cdc9a55602778b821dfc101407367fa3df1ef3

https://gitlab.synchro.net/main/sbbs/-/commit/4f087081761db61dc49813d4ad90aba9c1402c5c

---
þ Synchronet þ Vertrauen þ Home of Synchronet þ [vert/cvs/bbs].synchro.net

https://gitlab.synchro.net/main/sbbs/-/issues/218#note_1570

So I think there's at least 2 issues here. First, this line in `js_uifc.c` seems suspect:
```
p->bar = INT_MAX;
```
We want the bar to default to 0 (the top of the list), not the bottom of the list.

But still, leaving this value at INT_MAX is a good test of the cur/bar value checking logic in uifc32.c:ulist().

Given the test script, `i` on line 930 becomes `-4` and the following `if()` condition is not executed, so from that point on, `bar` and `cur` are out of sync and strange stuff happens.

Initializing `p->bar` to 0 in `js_uifc.c` makes this test script look/work fine, but the out-of-range `bar` value correction in uifc32.c's `ulist()` is clearly still broken.

---
þ Synchronet þ Vertrauen þ Home of Synchronet þ [vert/cvs/bbs].synchro.net

https://gitlab.synchro.net/main/sbbs/-/issues/218#note_1571

We want the bar to default to 0 (the top of the list), not the bottom of the list.

Actually, based on this commit, I think deuce wanted to move it to default to the bottom:

https://gitlab.synchro.net/main/sbbs/-/commit/2da95710623d330a22af766de18696763cba5f50

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þ Synchronet þ Vertrauen þ Home of Synchronet þ [vert/cvs/bbs].synchro.net

https://gitlab.synchro.net/main/sbbs/-/issues/218#note_1573

I don't think that was the intention.

---
þ Synchronet þ Vertrauen þ Home of Synchronet þ [vert/cvs/bbs].synchro.net

close https://gitlab.synchro.net/main/sbbs/-/issues/218

---
þ Synchronet þ Vertrauen þ Home of Synchronet þ [vert/cvs/bbs].synchro.net