feat(web): add TFM settings page

Only setting TFM database name by now

web/public/js/tfm-database.js

@@ -1,6 +1,11 @@
+var db_name = localStorage["tfm_db_name"];
+if (db_name == null) {
+	location.href = "/tfm/settings";
+}
+
 $(document).on("click", "#btn-save", function (e) {
 	e.preventDefault();
-	let resp = tdb_query("$TFM", 4, "");
+	let resp = tdb_query(db_name, 4, "");
 	if (resp.status) {
 		alert("Successfully saved!");
 	} else {
@@ -13,7 +18,7 @@ $(document).on("click", "#btn-discard", function (e) {
 	if (!confirm("All unsaved changes will be lost permanently. Are you sure?")) {
 		return;
 	}
-	let resp = tdb_query("$TFM", 2, "");
+	let resp = tdb_query(db_name, 2, "");
 	if (resp.status) {
 		alert("Successfully reloaded database!");
 	} else {