feat(exercise): add nicer fallback feedback (random)

[elbotho]

quick cute feature (and some minor refactoring) in between all the serious stuff 🐸
https://linear.app/serlo/issue/EDTR-254/make-default-exercise-feedback-more-motivating

• Demo
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Name	Status	Preview	Updated (UTC)
frontend	✅ Ready (Inspect)	Visit Preview	Jan 28, 2025 2:12pm

[github-actions]

📦 Next.js Bundle Analysis for @serlo/frontend

This analysis was generated by the Next.js Bundle Analysis action. 🤖

🎉 Global Bundle Size Decreased

Page	Size (compressed)
global	105.04 KB (-1 B)

Details

The global bundle is the javascript bundle that loads alongside every page. It is in its own category because its impact is much higher - an increase to its size means that every page on your website loads slower, and a decrease means every page loads faster.

Any third party scripts you have added directly to your app using the <script> tag are not accounted for in this analysis

If you want further insight into what is behind the changes, give @next/bundle-analyzer a try!

Seventy Pages Changed Size

The following pages changed size from the code in this PR compared to its base branch:

Page	Size (compressed)	First Load
/	85.72 KB (🟡 +191 B)	190.76 KB
/404	42.41 KB (🟡 +191 B)	147.45 KB
/500	42.41 KB (🟡 +191 B)	147.45 KB
/[...slug]	95.21 KB (🟡 +191 B)	200.25 KB
/___batch_license_tool	56.34 KB (🟡 +191 B)	161.38 KB
/___bot_or_not	106.55 KB (🟡 +191 B)	211.6 KB
/___cf_not_found	40.63 KB (🟡 +191 B)	145.67 KB
/___design	145.93 KB (🟡 +191 B)	250.97 KB
/___editor_preview	666.54 KB (🟡 +224 B)	771.58 KB
/___old_comments	99.7 KB (🟡 +191 B)	204.74 KB
/auth/___activate_vidis	40.92 KB (🟡 +191 B)	145.96 KB
/auth/error	65.45 KB (🟡 +191 B)	170.49 KB
/auth/login	90.05 KB (🟡 +191 B)	195.09 KB
/auth/logout	80.76 KB (🟡 +191 B)	185.8 KB
/auth/oauth/consent	55.36 KB (🟡 +191 B)	160.4 KB
/auth/oauth/login	90.05 KB (🟡 +191 B)	195.09 KB
/auth/oauth/logout	80.76 KB (🟡 +191 B)	185.8 KB
/auth/recovery	74.81 KB (🟡 +191 B)	179.85 KB
/auth/registration	75.61 KB (🟡 +191 B)	180.65 KB
/auth/settings	75.69 KB (🟡 +191 B)	180.74 KB
/auth/verification	74.97 KB (🟡 +191 B)	180.01 KB
/authorization/roles	67.07 KB (🟡 +191 B)	172.11 KB
/backend	42.69 KB (🟡 +191 B)	147.73 KB
/biologie	163.84 KB (🟡 +191 B)	268.88 KB
/chemie	163.83 KB (🟡 +191 B)	268.88 KB
/consent	41.2 KB (🟡 +191 B)	146.24 KB
/content-only/[...slug]	87.31 KB (🟡 +191 B)	192.35 KB
/discussions	96.24 KB (🟡 +191 B)	201.28 KB
/editor	88.09 KB (🟡 +191 B)	193.13 KB
/entity/create/[type]/[taxonomyId]	686.83 KB (🟡 +224 B)	791.87 KB
/entity/license/update/[id]	57.4 KB (🟡 +191 B)	162.44 KB
/entity/repository/add-revision/[...id]	686.56 KB (🟡 +224 B)	791.6 KB
/entity/repository/compare/[entity_id]/[revision_id]	99.76 KB (🟡 +191 B)	204.8 KB
/entity/repository/history/[id]	70.16 KB (🟡 +191 B)	175.2 KB
/entity/taxonomy/update/[id]	69.71 KB (🟡 +191 B)	174.75 KB
/entity/unrevised	47.46 KB (🟡 +191 B)	152.5 KB
/event/history	123.57 KB (🟡 +191 B)	228.61 KB
/event/history/[...slug]	124.54 KB (🟡 +191 B)	229.59 KB
/event/history/user/profile/[username]	126.94 KB (🟡 +191 B)	231.98 KB
/gleichungs-app	164.48 KB (🟡 +191 B)	269.52 KB
/informatik	163.84 KB (🟡 +191 B)	268.88 KB
/jobs/[[...jobId]]	51.9 KB (🟡 +191 B)	156.94 KB
/legal	40.69 KB (🟡 +191 B)	145.73 KB
/lerntipps	163.84 KB (🟡 +191 B)	268.88 KB
/license/detail/[id]	75.05 KB (🟡 +191 B)	180.09 KB
/mathe	163.83 KB (🟡 +191 B)	268.87 KB
/mathe-aufgaben	41.43 KB (🟡 +191 B)	146.47 KB
/mathe-pruefungen/[region]	77.91 KB (🟡 +191 B)	182.95 KB
/metadata	50.29 KB (🟡 +191 B)	155.33 KB
/nachhaltigkeit	163.84 KB (🟡 +191 B)	268.88 KB
/page/create	686.55 KB (🟡 +224 B)	791.59 KB
/pages	58.71 KB (🟡 +191 B)	163.75 KB
/privacy	44.36 KB (🟡 +191 B)	149.4 KB
/search	42.69 KB (🟡 +191 B)	147.73 KB
/spenden	55.03 KB (🟡 +191 B)	160.07 KB
/subscriptions/manage	106.64 KB (🟡 +191 B)	211.68 KB
/taxonomy/term/[copyOrMove]/batch/[id]	84.29 KB (🟡 +191 B)	189.33 KB
/taxonomy/term/create/[parent_id]/[id]	686.29 KB (🟡 +224 B)	791.34 KB
/taxonomy/term/sort/entities/[id]	92.16 KB (🟡 +191 B)	197.2 KB
/taxonomy/term/update/[id]	686.24 KB (🟡 +224 B)	791.28 KB
/team	48.43 KB (🟡 +191 B)	153.47 KB
/terms	40.71 KB (🟡 +191 B)	145.75 KB
/user/[...userslug]	40.51 KB (🟡 +191 B)	145.55 KB
/user/me	40.5 KB (🟡 +191 B)	145.54 KB
/user/notifications	125.9 KB (🟡 +191 B)	230.94 KB
/user/profile/[username]	182.9 KB (🟡 +191 B)	287.94 KB
/user/settings	688.21 KB (🟡 +224 B)	793.25 KB
/uuid/recycle-bin	80.85 KB (🟡 +191 B)	185.89 KB
/wallet	43.41 KB (🟡 +191 B)	148.45 KB
/willkommen	86.87 KB (🟡 +191 B)	191.92 KB

Details

Only the gzipped size is provided here based on an expert tip.

First Load is the size of the global bundle plus the bundle for the individual page. If a user were to show up to your website and land on a given page, the first load size represents the amount of javascript that user would need to download. If next/link is used, subsequent page loads would only need to download that page's bundle (the number in the "Size" column), since the global bundle has already been downloaded.

Any third party scripts you have added directly to your app using the <script> tag are not accounted for in this analysis

Next to the size is how much the size has increased or decreased compared with the base branch of this PR. If this percentage has increased by 20% or more, there will be a red status indicator applied, indicating that special attention should be given to this.

[hejtful]

Small step for the codebase, giant leap for the learner experience 🌔