Address npm install warnings

[wknapik]

E.g. https://ci.brave.com/view/linux/job/brave-browser-build-linux-x64/4903/execution/node/78/log/

13:06:20  + cd src/brave
13:06:20  + npm install --no-optional
13:06:31  npm WARN config optional Use `--omit=optional` to exclude optional dependencies, or
13:06:31  npm WARN config `--include=optional` to include them.
13:06:31  npm WARN config 
13:06:31  npm WARN config     Default value does install optional deps unless otherwise omitted.
13:06:44  npm WARN deprecated @types/jszip@3.4.1: This is a stub types definition. jszip provides its own type definitions, so you do not need this installed.
13:06:44  npm WARN deprecated @types/array-move@2.0.0: This is a stub types definition. array-move provides its own type definitions, so you do not need this installed.
13:06:44  npm WARN deprecated source-map-url@0.4.1: See https://github.com/lydell/source-map-url#deprecated
13:06:44  npm WARN deprecated urix@0.1.0: Please see https://github.com/lydell/urix#deprecated
13:06:44  npm WARN deprecated resolve-url@0.2.1: https://github.com/lydell/resolve-url#deprecated
13:06:45  npm WARN deprecated source-map-resolve@0.5.3: See https://github.com/lydell/source-map-resolve#deprecated
13:06:45  npm WARN deprecated querystring@0.2.1: The querystring API is considered Legacy. new code should use the URLSearchParams API instead.
13:06:45  npm WARN deprecated sane@4.1.0: some dependency vulnerabilities fixed, support for node < 10 dropped, and newer ECMAScript syntax/features added
13:06:45  npm WARN deprecated querystring@0.2.0: The querystring API is considered Legacy. new code should use the URLSearchParams API instead.
13:06:45  npm WARN deprecated uuid@3.4.0: Please upgrade  to version 7 or higher.  Older versions may use Math.random() in certain circumstances, which is known to be problematic.  See https://v8.dev/blog/math-random for details.
13:06:46  npm WARN deprecated multibase@3.1.2: This module has been superseded by the multiformats module
13:06:47  npm WARN deprecated @storybook/addon-knobs@6.4.0: deprecating @storybook/addon-knobs in favor of @storybook/addon-controls
[...]