Shiny Charm not granted after reaching level 50

[FlareHD]

When you reach Level 50 for your shinx, it should allow you to change your shinx into a shiny version with the command /shinx shiny. However, it does not let you change your shinx as the shiny charm is not given to the user once reaching level 50.

Steps to reproduce the behavior:

1. Go to wherever you use the bot
2. Reach level 50 with your shinx
3. Use the command /shinx shiny

Screenshots

[Glazelf]

addExperience() function might be bugged?

NinigiBot/database/dbServices/shinx.api.js

Lines 49 to 58 in 0e421cb

	async addExperience(id, experience) {
	let shinx = await this.getShinx(id, ['user_id', 'experience']);
	const res = await shinx.addExperienceAndLevelUp(experience);
	if (res.pre != res.post) {
	if (hasPassedLevel(res.pre, res.post, 5)) await this.addEventTrophy(id, 'Bronze Trophy');
	if (hasPassedLevel(res.pre, res.post, 15)) await this.addEventTrophy(id, 'Silver Trophy');
	if (hasPassedLevel(res.pre, res.post, 30)) await this.addEventTrophy(id, 'Gold Trophy');
	if (hasPassedLevel(res.pre, res.post, 50)) await this.addEventTrophy(id, 'Shiny Charm');
	};
	},