fix(dialog): content style problem when use English (#1720)

* fix(dialog): content style problem when use English

* Update src/dialog/src/styles/index.cssr.ts

Co-authored-by: 07akioni <07akioni2@gmail.com>

CHANGELOG.en-US.md

@@ -4,6 +4,7 @@
 
 ### Fixes
 
+- Fix `n-dialog`'s `content` word-break.
 - Fix `n-input-number` cannot input decimals value.
 
 ### Feats

CHANGELOG.zh-CN.md

@@ -4,6 +4,7 @@
 
 ### Fixes
 
+- 修复 `n-dialog` 的 `content` 内容为英文时的换行问题
 - 修复 `n-input-number` 不能输入小数值
 
 ### Feats

src/dialog/src/styles/index.cssr.ts

@@ -77,6 +77,7 @@ export default c([
       font-size: var(--font-size);
       margin: var(--content-margin);
       position: relative;
+      word-break: break-word;
     `, [
       c('&:last-child', 'margin-bottom: 0;')
     ]),