Move back custom widgets into main project

Signed-off-by: AnErrupTion <anerruption@disroot.org>

src/config/SavedUsers.zig

@@ -0,0 +1,28 @@
+const std = @import("std");
+
+const SavedUsers = @This();
+
+const User = struct {
+    username: []const u8,
+    session_index: usize,
+    first_run: bool,
+    allocated_username: bool,
+};
+
+user_list: std.ArrayList(User),
+last_username_index: ?usize,
+
+pub fn init() SavedUsers {
+    return .{
+        .user_list = .empty,
+        .last_username_index = null,
+    };
+}
+
+pub fn deinit(self: *SavedUsers, allocator: std.mem.Allocator) void {
+    for (self.user_list.items) |user| {
+        if (user.allocated_username) allocator.free(user.username);
+    }
+
+    self.user_list.deinit(allocator);
+}

src/config/migrator.zig

@@ -11,11 +11,11 @@ const Color = TerminalBuffer.Color;
 const Styling = TerminalBuffer.Styling;
 const ly_core = ly_ui.ly_core;
 const IniParser = ly_core.IniParser;
-const SavedUsers = ly_core.SavedUsers;
 const ini = ly_core.ini;
 
 const Config = @import("Config.zig");
 const OldSave = @import("OldSave.zig");
+const SavedUsers = @import("SavedUsers.zig");
 
 const color_properties = [_][]const u8{
     "bg",