translation: update he

[google-cla[bot]]

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[moshfeu]

@googlebot I signed it!

[NeilFraser]

Thank you so much for these translations! We are very keen to fill the missing gaps in our Hebrew.

In future though, could you please make these changes upstream at https://translatewiki.net/ as described here: https://developers.google.com/blockly/guides/modify/web/translating Using Translate Wiki as a source for translations (as opposed to random Pull Requests) helps us keep Blockly Games safer from malice -- something which we have heightened awareness of when dealing with Hebrew.

[moshfeu]

Will do. Thanks!