add keyword spacing and detection of templates exp

Adding two rules. The first is convention in the project already and the second is very useful for spotting incorrect curly braces in e.g. origin strings, slave.origin = "{He} was born a slave."

https://eslint.org/docs/rules/keyword-spacing

https://eslint.org/docs/rules/no-template-curly-in-string#disallow-template-literal-placeholder-syntax-in-regular-strings-no-template-curly-in-string

@Skriv

no-template-curly-in-string, does it hit any false positives? There are some cases where it is used.

Haven't been successful finding any. For example

r.push(`"${properTitle()}," ${heA} says softly, "may I ask you something?" You nod. ${HeA}`);

would not give a false positive.

Was more thinking along the lines of origin = "You purchased $him from ${market}."

I suppose we'll see if it gets moody down the line.

merged

mentioned in commit 440281a8