fix: set running to true before throwing exit hook on no input

this fixes an issue with the prompt being kind of a mess when
enter alone is pressed (and hilbish doesn't try to run anything)

complete.go

@@ -69,6 +69,8 @@ func binaryComplete(query, ctx string, fields []string) ([]string, string) {
 		}
 	}
 
+	completions = removeDupes(completions)
+
 	return completions, query
 }
 

exec.go

@@ -245,7 +245,7 @@ func splitInput(input string) ([]string, string) {
 func cmdFinish(code uint8, cmdstr, oldInput string) {
 	// if input has space at the beginning, dont put in history
 	if !strings.HasPrefix(oldInput, " ") || interactive {
-		handleHistory(cmdstr)
+		handleHistory(strings.TrimSpace(oldInput))
 	}
 	util.SetField(l, hshMod, "exitCode", lua.LNumber(code), "Exit code of last exected command")
 	hooks.Em.Emit("command.exit", code, cmdstr)

main.go

@@ -187,6 +187,7 @@ input:
 
 		input = strings.TrimSpace(input)
 		if len(input) == 0 {
+			running = true
 			hooks.Em.Emit("command.exit", 0)
 			continue
 		}
@@ -268,3 +269,16 @@ func expandHome(path string) string {
 
 	return strings.Replace(defaultHistDir, "~", homedir, 1)
 }
+
+func removeDupes(slice []string) []string {
+	all := make(map[string]bool)
+	newSlice := []string{}
+	for _, item := range slice {
+		if _, val := all[item]; !val {
+			all[item] = true
+			newSlice = append(newSlice, item)
+		}
+	}
+
+	return newSlice
+}