Optimize various SVGs (#2130)

* first 3 optimizations

* minified 5 more SVGs

* minimized the delete icon even more

* minified white variants of previously minified SVGs

* removed unneccessary xml header from circlecount-outline SVG

* optimized invert icons

* optimized open_with SVG

* optimized the alignment SVGs

* optimized pin SVGs

* optimized mouse-off SVGs

* optimized flameshot icon SVG

* optimized more instances of the flameshot icon SVG

* optimized SVG 'marker'

* fixed problems with weird default fonts messing with the circlecount-outline SVG image

* whoops forgot to recolor a white icon

* different approach to 3f73efa62b8dadca58042d0b817e4150c8a16ee6
qt5 didn't like the transform attribute I added previously, but this should work as well - just not as reliably.
Better than before both commits in any case though

* somewhat decreased size & complexity of the keyboard SVG

* optimized monochrome flameshot icon

* optimized format-text SVG

* optimized SVG icon 'graphics'

* optimized SVG icon 'format_bold'

* optimized SVG icon 'colorize'

* optimized SVG icon 'config'

* optimized icon 'redo-variant'

* optimized SVG icon 'cloud-upload'

* optimized SVG icon 'arrow-bottom-left'

* optimized SVG icon 'circle-outline'

* optimized SVG icon 'content-copy'

* optimized SVG icon 'content-save'

* optimized SVG icon 'cursor-move'

* optimized SVG icon 'exit-to-app'

* optimized SVG icon 'format_italic'

* optimized SVG icon 'format_strikethrough'

* optimized SVG icon 'format_underlined'