Translations missing for some default values

[microbit-robert]

Describe the bug
We have spotted two cases where the default values for blocks are not translated:

• The default value for the show string block is always "Hello!" - see definition
• The default value for the first parameter of the radio send value block is always "name" - see definition

To Reproduce
Steps to reproduce the behavior:

1. Go to https://makecode.microbit.org/#editor
2. Change the language to something other than English, e.g., Spanish
3. Open the basic category
4. Observed that the default value for "show string" remains "Hello!" instead of "Hola"

Expected behavior
These default values should be translated, as they are for the text category (though a different implementation).

Screenshots

micro:bit version (please complete the following information):
Not hardware related.

Desktop (please complete the following information):

• macOS Sequoia 15.7.3
• Chrome Version 143.0.7499.111 (Official Build) (arm64)

Additional context
It is possible that there are other default values defined using "eg: ..." that are also untranslated.

@jaustin