Bump terser from 5.5.1 to 5.16.1 in /site

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Bumps terser from 5.5.1 to 5.16.1.

Changelog

Sourced from terser's changelog.

v5.16.1

• Properly handle references in destructurings (const { [reference]: val } = ...)
• Allow parsing of .#privatefield in nested classes
• Do not evaluate operations that return large strings if that would make the output code larger
• Make collapse_vars handle block scope correctly
• Internal improvements: Typos (#1311), more tests, small-scale refactoring

v5.16.0

• Disallow private fields in object bodies (#1011)
• Parse #privatefield in object (#1279)
• Compress #privatefield in object

v5.15.1

• Fixed missing parentheses around optional chains
• Avoid bare let or const as the bodies of if statements (#1253)
• Small internal fixes (#1271)
• Avoid inlining a class twice and creating two equivalent but !== classes.

v5.15.0

• Basic support for ES2022 class static initializer blocks.
• Add AudioWorkletNode constructor options to domprops list (#1230)
• Make identity function inliner not inline id(...expandedArgs)

v5.14.2

• Security fix for RegExps that should not be evaluated (regexp DDOS)
• Source maps improvements (#1211)
• Performance improvements in long property access evaluation (#1213)

v5.14.1

• keep_numbers option added to TypeScript defs (#1208)
• Fixed parsing of nested template strings (#1204)

v5.14.0

• Switched to @​jridgewell/source-map for sourcemap generation (#1190, #1181)
• Fixed source maps with non-terminated segments (#1106)
• Enabled typescript types to be imported from the package (#1194)
• Extra DOM props have been added (#1191)
• Delete the AST while generating code, as a means to save RAM

v5.13.1

• Removed self-assignments (varname=varname) (closes #1081)
• Separated inlining code (for inlining things into references, or removing IIFEs)
• Allow multiple identifiers with the same name in var destructuring (eg var { a, a } = x) (#1176)

v5.13.0

... (truncated)

Commits

• b90215a 5.16.1
• 319fe31 update changelog
• d941a11 mark computed properties in for..of initializers as used. Closes #1238
• 635400e move AST_Scope#drop_unused into its own file
• a192fac some cleanups
• dcc3030 add shadowed variable test
• 4d37f39 traverse exported code while hoisting object properties. Closes #1307
• 1e99e5d update test
• 68461d4 properly detect nested classes. Closes #1313
• b91e0ce docs: fix simple typo, concatentation -> concatenation (#1311)
• Additional commits viewable in compare view

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