Typos, round 4

[Firsh]

https://www.totaltypescript.com/workshops/typescript-pro-essentials/objects/extending-incompatible-properties/exercise

In "Note that the challenge is not to make the error go away– you could easily"...

Space after long dash but not before (it should be either both sides or no spaces).

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https://www.totaltypescript.com/workshops/typescript-pro-essentials/objects/comparing-intersection-and-interface-extends-in-typescript

Check if you wanted to use plural or singular extend in:

"The intersection and interface extend can both be"...

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https://www.totaltypescript.com/workshops/typescript-pro-essentials/objects/supporting-different-types-of-keys-in-typescript/exercise

This feels redundant: ...", but there is a more interesting answer. However, there is a global type available"...

Suggestion is to join the two sentences: ...", but there is a more interesting answer that arises from a global type available"...

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https://www.totaltypescript.com/workshops/typescript-pro-essentials/objects/understanding-distributive-omit-and-pick-in-typescript

The second code snippet already includes the solution (DistributiveOmit), you might have wanted to use normal Omit in the first place of demonstration.

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https://www.totaltypescript.com/workshops/typescript-pro-essentials/mutability/object-property-inference/solution

(in the beginning)
"Like before, we have an errors that" -> make error singular

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https://www.totaltypescript.com/workshops/typescript-pro-essentials/mutability/prevent-array-mutation-in-typescript/solution

"The first approach solution is" -> keep either approach or solution word

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https://www.totaltypescript.com/workshops/typescript-pro-essentials/mutability/improve-type-inference-for-an-async-function/solution

"Using as const sets a variable is read-only" -> change "is" to "as"