Function capitalizeFirstLetter

capitalizeFirstLetter(str: string): string
Capitalize the first letter of a string.
Parameters
- str: string
  The string whose first letter is to be capitalized
Returns string
The original string with its first letter capitalized.
Example
```
console.log(capitalizeFirstLetter("consectetur adipiscing elit")); // returns "Consectetur adipiscing elit"
```
- Defined in src/utils/strings.ts:71