refactor: rename "line returns" to "line breaks"

Author: jsamr

apps/website/blog/2021-06-29-create-blog-app-rnrh-III.mdx

@@ -671,7 +671,7 @@ Code samples are rendered by Docusaurus in a `<pre class="prism-code">` tag. We
 whole code block is rendered inside a `code` element with a `display: flex;
 flex-direction: column`. However, `code` is translated to a React Native `Text`
 since his element model is **textual**. To work around this issue, we can
-inject line returns after each `span` element with a CSS `token-line` class
+inject line breaks after each `span` element with a CSS `token-line` class
 which content does not end with a new line.
 
 

doc-tools/doc-pages/src/pages/PageConceptTRE.tsx

@@ -321,7 +321,7 @@ export default function PageConceptTRE() {
           <TNodeTransformDisplay
             html={source}
             snaphost={collapsingEngine.buildTTree(source).snapshot()}
-            caption="Notice when comparing with the previous example, the line returns and extraneous spaces have been removed."
+            caption="Notice when comparing with the previous example, the line breaks and extraneous spaces have been removed."
           />
         </Section>
       </Chapter>

packages/render-html/src/__tests__/component.render-html.test.tsx

@@ -96,7 +96,7 @@ describe('RenderHTML', () => {
       );
       await findByText('\u200B');
     });
-    it('should render <br> tags to line returns when followed by text', () => {
+    it('should render <br> tags to line breaks when followed by text', () => {
       const { queryByText } = render(
         <RenderHTML
           source={{
@@ -108,7 +108,7 @@ describe('RenderHTML', () => {
       );
       expect(queryByText('\n')).toBeDefined();
     });
-    it('should render <br> tags to line returns when the tag closes an inline formatting context', () => {
+    it('should render <br> tags to line breaks when the tag closes an inline formatting context', () => {
       const { queryByText } = render(
         <RenderHTML
           source={{
@@ -683,7 +683,7 @@ describe('RenderHTML', () => {
     });
   });
   describe('regarding enableExperimentalBRCollapsing', () => {
-    it('should render <br> tags to line returns when followed by text', () => {
+    it('should render <br> tags to line breaks when followed by text', () => {
       const { queryByText } = render(
         <RenderHTML
           source={{

packages/render-html/src/__tests__/w3c.html.pre.test.tsx

@@ -4,14 +4,14 @@ import renderer from 'react-test-renderer';
 import { extractTextFromInstance } from './utils';
 
 describe('RenderHTML component regarding <pre> tags behaviors', () => {
-  it('preserves tabs and line returns', () => {
+  it('preserves tabs and line breaks', () => {
     const testRenderer = renderer.create(
       <RenderHTML debug={false} source={{ html: '<pre>\t\n  a</pre>' }} />
     );
     const renderedText = extractTextFromInstance(testRenderer.root);
     expect(renderedText).toEqual('\t\n  a');
   });
-  it('preserves indentation and line returns', () => {
+  it('preserves indentation and line breaks', () => {
     const preContent = `
     function myJSFunction() {
       console.log("let's go");