feat: provide a fallback string to <PrismicText>

[angeloashmore]

Types of changes

• Chore (a non-breaking change which is related to package maintenance)
• Bug fix (a non-breaking change which fixes an issue)
• New feature (a non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Description

This PR adds the ability to provide a fallback string to <PrismicText>. If the provided Rich Text or Title field is nullish, the fallback string is rendered. If a fallback string is not given, null is rendered (this is the existing functionality).

Example:

<PrismicText field={null} fallback="Untitled" />
// => <>Untitled</>

<PrismicText field={undefined} fallback="Untitled" />
// => <>Untitled</>

Closes #105

Checklist:

• My change requires an update to the official documentation.
• All TSDoc comments are up-to-date and new ones have been added where necessary.
• All new and existing tests are passing.

🕊️

[codecov-commenter]

Codecov Report

Merging #126 (9e9a324) into master (ce32036) will increase coverage by 0.36%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #126      +/-   ##
==========================================
+ Coverage   92.25%   92.61%   +0.36%     
==========================================
  Files          16       16              
  Lines         271      271              
  Branches       60       61       +1     
==========================================
+ Hits          250      251       +1     
  Misses          5        5              
+ Partials       16       15       -1     

Impacted Files	Coverage Δ
src/PrismicText.tsx	100.00% <100.00%> (ø)
src/usePrismicClient.ts	100.00% <0.00%> (+12.50%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update de1e8df...9e9a324. Read the comment docs.

[github-actions]

size-limit report 📦

Path	Size
dist/index.js	4.11 KB (+0.41% 🔺)
dist/index.cjs	6.24 KB (+0.33% 🔺)