Lendingarsidur texts

[17luke]

@thdg Can you review? These are the changes requested by Anna and Bjarni.

[SmariF89]

Did some code review. Please address the prettier issues as well.

[17luke]

Thanks! I've made all those changes except the prettier formatting. Prettier format check is only failing on some other files in the repo that seem to be a few months old. I'll fix them in a separate PR.

Excerpt from Prettier format check log:

[warn] src/components/contribute/setup/contribute.tsx
[warn] src/components/contribute/setup/demographic-form.tsx
[warn] src/pages/api/contribute/upload.ts
[warn] src/pages/api/stats/user-l2.ts
[warn] src/server/database/sentences.ts
[warn] src/services/contribute-api.ts
[warn] src/services/stats-api.ts
[warn] src/store/user/reducer.ts
[warn] src/utilities/subpage-helper.ts

[17luke]

Separate PR for prettier format check:
#155

[17luke]

Think all is resolved now