Align SVG markup across Foundation products by:
- unifying XML declaration,
- adding `width` and `height` attributes where missing,
- removing all unnecessary `g` group elements where applicable,
- putting attributes in order,
- removing unnecessary ids and
- unifying whitespace.
Bug: T178867
Change-Id: I6860c9259553e0e41f7656f9e98534db8e02bbc2
Aligning remaining SVGs to WikimediaUI color palette.
Also:
- Aligning markup to each other, among others adding XML declaration
throughout or removing unnecessary `standalone=no` attribute.
- Optimizing with SVGO without prettified markup. Savings of up to
17% of file size.
Bug: T146799
Bug: T172850
Change-Id: I54a21932fd5df64b7716ac66a90de5af73776c23