Setting to allow .editorconfig take control over soft-wrap

[katry0]

Since 20198 PR is merged, it is not possible to have .editorconfig property max_line_length set overwrite zed preferred_line_length and soft_wrap setting which was obviously purpose of PR but there are people (including me), who want to use max_line_length exactly that way - specially the ruler not set on max_line_length can be confusing for some people.

I know it is non-standard feature, so I suggest create new boolean setting editorconfig_soft_wrap by default set on false, that allows .editorconfig to overwrite zed preferred_line_length and soft_wrap setting.