Remove the view command and the editor setting with it

`view` was the last user of `editor`, so leaving the setting behind would
have made it exactly what `gitkey` was until recently: documented,
parsed, and doing nothing. It is gone from the struct, the template, the
environment, `config -k` and the settings table.

Both names are free for aliases now, as `open` already was.

The tests that used `editor` as their example of a project-overridable
setting use `gitkey` instead, which is the same kind of thing and still
exists.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

commands.go

@@ -573,42 +573,6 @@ func runCommandDepth(line string, depth int) bool {
 			}
 		}
 
-	case "view": // open a project in Xcode / the configured editor
-		prj := PRJ
-		if w := word(words, 1); w != "" {
-			prj = w
-		}
-		d := BASE + "/" + prj
-		if !validProject(prj) || !isDir(d) {
-			errorln("not found")
-			break
-		}
-		xws, xprj := "", ""
-		if entries, err := os.ReadDir(d); err == nil {
-			for _, e := range entries {
-				if strings.HasSuffix(e.Name(), ".xcworkspace") {
-					xws = e.Name()
-				}
-				if strings.HasSuffix(e.Name(), ".xcodeproj") {
-					xprj = e.Name()
-				}
-			}
-		}
-		// prefer the workspace over the project; fall back to the editor unless
-		// one of them is really openable (a name match on a plain file is not).
-		switch {
-		case xws != "" && isDir(d+"/"+xws):
-			runInDir(d, "open", xws)
-		case xprj != "" && isDir(d+"/"+xprj):
-			runInDir(d, "open", xprj)
-		default:
-			editor := cfg.Editor
-			if editor == "" {
-				editor = "coda"
-			}
-			runInDir(d, editor, d)
-		}
-
 	case "count": // count source lines in the project
 		if !requireProject() {
 			break
@@ -806,7 +770,6 @@ const gitignore = `.DS_Store
 
 var helpItems = []struct{ cmd, desc string }{
 	{"cd [project]", "change project (no argument: back to the base)"},
-	{"view [project]", "open project in Xcode / the editor"},
 	{"init", "make new repository from current directory"},
 	{"push [comment]", "push changes to git server"},
 	{"pushremote [@name] [desc]", "mirror repo to the public server(s) (gitea/github/gitlab)"},