Move non-global SVG attributes

This is the complementary task to https://github.com/mdn/browser-compat-data/issues/25608, extracted from https://github.com/mdn/browser-compat-data/issues/9462.

Check svg.global_attributes for attributes that aren't actually global:

Tasks

• autofocus (scope not specified in SVG 2, "has no effect if the element is not already focusable", which strictly speaking doesn't exclude non-focusable elements)
• id ("available on all SVG elements")
• lang ("may be used on SVG elements in XML documents", i.e. not limited)
• tabindex (scope not specified in SVG 2, i.e. no limitation mentioned)
• xml_lang ("may be used on SVG elements in XML documents")
• xml_space (scope not specified in SVG 2, refers to SVG 1, which mentions no limitation)
• data_attributes ("All SVG elements support custom data attributes")
• class (scope implicitly defined via className attribute on SVGElement)
• style (scope not specified in SVG 2, refers to HTML spec, where it's global)
• ⚠️ requiredExtensions ("Most elements, but not all, may have conditional processing attributes [like requiredExtensions] specified on them.", which excludes never-rendered elements like style/script)
• (Global) alignment-baseline
• (Global) baseline-shift
• ⚠️ clip (SVG 2 refers to CSS Masking 1: "applies to elements which establish a new viewport, pattern and mask elements")
• (Global) clip-path
• (Global) clip-rule
• (Global) color
• (Global) color-interpolation
• (Global) color-interpolation-filters
• (Global) cursor
• (Global) direction
• (Global) display
• (Global) dominant-baseline
• (Global) fill-opacity
• (Global) fill-rule
• (Global) filter
• (Global) flood-color
• (Global) flood-opacity
• (Global) font-family
• (Global) font-size
• (Global) font-size-adjust
• (Global) font-stretch
• (Global) font-style
• (Global) font-variant
• (Global) font-weight
• (Global) glyph-orientation-horizontal
• (Global) glyph-orientation-vertical
• (Global) image-rendering
• (Global) letter-spacing
• (Global) lighting-color
• (Global) marker-end
• (Global) marker-mid
• (Global) marker-start
• (Global) mask
• (Global) opacity
• (Global) overflow
• (Global) paint-order
• (Global) pointer-events
• (Global) shape-rendering
• (Global) stop-color
• (Global) stop-opacity
• (Global) stroke
• (Global) stroke-dasharray
• (Global) stroke-dashoffset
• (Global) stroke-linecap
• (Global) stroke-linejoin
• (Global) stroke-miterlimit
• (Global) stroke-opacity
• (Global) stroke-width
• (Global) text-anchor
• (Global) text-decoration
• (Global) text-overflow
• (Global) text-rendering
• ⚠️ transform (SVG 2 points to CSS Transforms 1, which mentions "applies to: transformable elements")
• (Global) transform-origin
• (Global) unicode-bidi
• (Global) vector-effect
• (Global) visibility
• (Global) white-space
• (Global) word-spacing
• (Global) writing-mode

Start at the svg.global_attributes data mentioned in the issue and review the linked source issues and SVG/CSS specifications for requiredExtensions, clip, and transform. Move each attribute to the appropriate SVG element scope, then validate the affected JSON data and confirm that svg.global_attributes contains only truly global attributes.