blocks: hard to find 'str' ("Create text with") for a single string

I'd like to be able to easily convert numbers to strings using blocks. Here's a simple example of a program where this would be useful


The 'create text with' block that exists currently has two inputs, and the hover text says "create text by joining together any number of items"

As the image of the block has two 'inputs' it is not clear that this block can also be used for a single item (although I agree 'any number of items' does clearly include one item!):


Using the 'gear' on the 'create text with' block you can achieve this

However, I think it would be much clearer to add another block, perhaps "Convert to text" and the "create text with" could be "Combine items into text" or similar?

@carlosperate thoughts?

从现有的“create text with”代码块、它的两个输入、悬停文本以及 issue 中显示的齿轮配置开始。确定单独的单值转换代码块、更清晰的命名，还是两者结合，最能解决这种困惑；当新手无需间接配置该代码块就能找到并使用数字转文本转换时，即视为完成。

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