Allow movie as attachements

[Glandos]

Feature Description

Currently, there is a hardcoded list of allowed MIME types:

gitea/modules/setting/attachment.go

Line 19 in ab77a24

AllowedTypes: "image/jpeg,image/png,application/zip,application/gzip",

However, it should be great to be able to upload webm/mp4 short movies, that are really more efficient for small dynamic screen reports.

Screenshots

No response

[Gusted]

Currently, there is a hardcoded list of allowed MIME types:

It's not hardcoded, and that's not the actual value when used in production(it's specified a few lines below at line 32). I think adding a common video format makes sense, e.g. when a user wants to demonstrate a bug or something within a issue.