Fix: Improve each_item_invalid_assignment error message

[Prinzhorn]

Closes #14702

[changeset-bot]

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Latest commit: d3fd53d

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[github-actions]

Playground

pnpm add https://pkg.pr.new/svelte@14703

[Prinzhorn]

Probably edited the wrong file I guess (Playground still shows the old string), was only trying to do a quick ctrl+f before heading out.

Edit: correct place is here if anyone wants to change that

svelte/packages/svelte/src/compiler/errors.js

Line 159 in af9b071

e(node, "each_item_invalid_assignment", `Cannot reassign or bind to each block argument in runes mode. Use the array and index variables instead (e.g. \`array[i] = value\` instead of \`entry = value\`)\nhttps://svelte.dev/e/each_item_invalid_assignment`);