[Keyboard] add adelais rev4 (#12443)

keyboards/mechlovin/adelais/standard_led/rev4/config.h

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+/*
+Copyright 2021 Mechlovin' Studio
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#pragma once
+
+#define PRODUCT_ID   0xAD03
+
+#define ENCODERS_PAD_A { A6, A4, B7 }
+#define ENCODERS_PAD_B { A5, A3, B6 }
+#define ENCODER_RESOLUTION 4
+
+#define TAP_CODE_DELAY 10

keyboards/mechlovin/adelais/standard_led/rev4/readme.md

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+# Adelais rev.4
+
+![adelais](https://i.imgur.com/6U1IfZe.png)
+
+Compatible with TGR Alice and all clone variants.  
+`standard_led` (Adelais) comes with backlight and RGB underglow LEDs pre-soldered. Adelais rev.4 support 3 rotary encoder, USB TypeC both side and reset footprint.
+
+* Keyboard Maintainer: [Team Mechlovin'](https://github.com/mechlovin)
+* Hardware Supported: Adelais
+* Hardware Availability: [Mechlovin.studio](https://mechlovin.studio/collections/pcb/products/adelais-tgr-alice-clones-compatible-pcb?variant=34140335472779)
+
+Make example for this keyboard (after setting up your build environment):
+
+    make mechlovin/adelais/standard_led:default
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).

keyboards/mechlovin/adelais/standard_led/rev4/rules.mk

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+ENCODER_ENABLE = yes