Make report course error button more prominent coursereg / course update periods

[kokrui]

On each course detail page, below the "Add to Semester X", there is a "Report Errors" button which directs users to the correct faculty / department email to contact.

I'm not sure if many people notice / use this button right now, but I think it's helpful as another prompt to inform NUSMods users that they should be going to their faculties / departments instead of contacting the maintainers for issues related to course data.

To that end, we could upgrade the visibility of the button either when CourseReg is active (maybe +- a week), and/or when course information is newly-updated.

One can detect the former using the dates from https://github.com/nusmodifications/nusmods/blob/master/website/src/data/modreg-schedule.json,

and the latter by seeing if the relevant announcement is enabled (

nusmods/website/src/views/components/notfications/Announcements.tsx

Lines 13 to 34 in 59b78cc

	const enableAnnouncements = true;
	/**
	* Unique key for the current announcement. If the announcement is not
	* dismissible, set the key to null. Otherwise, set it to a string.
	*
	* Previous keys:
	* - 'ay202425-new-data' - AY2024/25 data is available
	* - 'ay202324-new-data' - AY2023/24 data is available
	* - 'ay202223-new-data' - AY2022/23 data is available
	* - 'vercel-migration-120522' - Announcement for possible outage for
	* migration out of Vercel team plan
	* - 'ay202122-2107-search-outage' - Module search outage apology
	* - 'ay202122-new-data' - AY2021/22 data is available
	* - 'ay202021-new-data' - AY2020/21 data is available
	* - 'ay201920-new-data' - AY2019/20 data is available
	* - 'nusmods-is-official' - NUSMods switch to official APIs
	* - 'nusmods-r-announcement' - NUSMods R announcement message
	* - 'ay201819-new-data' - AY2018/19 data is available
	* - 'ay201819-s2-new-data' - S2 data available
	*/
	const key = announcementKey('ay202425-new-data');

)

Perhaps we can improve the visibility of the button during those periods by giving it a border, letting it span across the course description, or anything else you think of.

[KieronOei]

I'd like to work on this