feat(alerting): Make Microsoft Teams title customizable about gatus

[amai2012]

I don't know what side is wrong on this since other similar tools also got broken notifications...

This topic was recently reported at Microsoft at https://techcommunity.microsoft.com/t5/microsoft-teams/new-teams-unicode-hex-character-and-emoji/m-p/3963936
google also show up earlier similar issues...

Both flavours of Teams (traditional and "new") are affected according to my experience.

[TwiN]

To be completely honest, that seems more like an issue with Microsoft Teams than with Gatus, however, it's an issue nonetheless.

If allowing the customization of the title in the message generated by the webhook payload sent by Gatus resolves the situation, then I'd be willing to add a new alerting.teams.title field.

There's already a precedent for this anyways: see #602, which was made for Discord's title to be customizable.

[Rodri9o]

@221bshashank
This file (below) has not changed in a while (1 yr +).
Likely related to a Teams update as it renders properly on my phone but not on my Desktop Teams client.

• gatus/alerting/provider/teams/teams.go

  Line 108 in 16366e1

  Title: "🚨 Gatus",

[JamesHillyard]

I've also experienced this problem, it started when I updated teams a few weeks ago 😞

I'm not using the "Try the new Teams" feature although the same issue exists when I turn it on

[221bshashank]

I think color code needs to be changed (

gatus/alerting/provider/teams/teams.go

Line 108 in de7256e

Title: "🚨 Gatus",

), not sure

[221bshashank]

@TwiN sounds like a new feature. thanks