Add design improvements to the LSP popover (#33485)

Not the ideal design just yet as that will probably require a different
approach altogether, but am pushing here just some reasonably small UI
adjustments that will make this feel slightly nicer!

Release Notes:

- N/A

assets/icons/bolt_filled_alt.svg

@@ -0,0 +1,3 @@
+<svg width="12" height="12" viewBox="0 0 12 12" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M6.75776 5.50003H8.49988C8.70769 5.50003 8.89518 5.62971 8.95455 5.82346C9.04049 6.01876 8.9858 6.23906 8.82956 6.37656L4.82971 9.87643C4.65315 10.0295 4.39488 10.042 4.20614 9.90455C4.01724 9.76705 3.94849 9.51706 4.04052 9.30301L5.24219 6.49999H3.48601C3.2918 6.49999 3.10524 6.37031 3.03197 6.17657C2.9587 5.98126 3.014 5.76096 3.1708 5.62346L7.17018 2.12375C7.34674 1.97001 7.60454 1.95829 7.7936 2.09547C7.98265 2.23275 8.0514 2.48218 7.95922 2.69695L6.75776 5.50003Z" fill="black"/>
+</svg>

assets/icons/lsp_debug.svg

@@ -0,0 +1,12 @@
+<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M6 3L7 4" stroke="black" stroke-width="1.33333" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M9 4L10 3" stroke="black" stroke-width="1.33333" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M6.002 6V5.51658C5.98992 5.32067 6.03266 5.12502 6.12762 4.94143C6.22259 4.75784 6.36781 4.59012 6.55453 4.44839C6.74125 4.30666 6.9656 4.19386 7.21403 4.1168C7.46246 4.03973 7.72983 4 8 4C8.27017 4 8.53754 4.03973 8.78597 4.1168C9.0344 4.19386 9.25875 4.30666 9.44547 4.44839C9.63219 4.59012 9.77741 4.75784 9.87238 4.94143C9.96734 5.12502 10.0101 5.32067 9.998 5.51658V6" stroke="black" stroke-width="1.33333" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M8 13C6.35 13 5 11.5462 5 9.76923V8.15385C5 7.58261 5.21071 7.03477 5.58579 6.63085C5.96086 6.22692 6.46957 6 7 6H9C9.53043 6 10.0391 6.22692 10.4142 6.63085C10.7893 7.03477 11 7.58261 11 8.15385V9.76923C11 11.5462 9.65 13 8 13Z" stroke="black" stroke-width="1.33333" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M5 6.16663C3.90652 6.06663 3 5.21663 3 4.16663" stroke="black" stroke-width="1.33333" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M5 9H3" stroke="black" stroke-width="1.33333" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M3 13C3 11.95 3.89474 11.05 5 11" stroke="black" stroke-width="1.33333" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M13 4C13 5.05 12.0857 5.9 11 6" stroke="black" stroke-width="1.33333" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M13 9H11" stroke="black" stroke-width="1.33333" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M11 11C12.1053 11.05 13 11.95 13 13" stroke="black" stroke-width="1.33333" stroke-linecap="round" stroke-linejoin="round"/>
+</svg>

assets/icons/lsp_restart.svg

@@ -0,0 +1,4 @@
+<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M3.84265 10.7778C4.39206 11.6001 5.17295 12.241 6.08658 12.6194C7.00021 12.9978 8.00555 13.0969 8.97545 12.9039C9.94535 12.711 10.8363 12.2348 11.5355 11.5355C12.2348 10.8363 12.711 9.94535 12.9039 8.97545C13.0969 8.00555 12.9978 7.00021 12.6194 6.08658C12.241 5.17295 11.6001 4.39206 10.7778 3.84265C9.9556 3.29324 8.9889 3 8 3C6.60219 3.00526 5.26054 3.55068 4.25556 4.52222L3 5.77778" stroke="black" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M3 3V6H6" stroke="black" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>
+</svg>

assets/icons/lsp_stop.svg

@@ -0,0 +1,4 @@
+<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M8 13C10.7614 13 13 10.7614 13 8C13 5.23858 10.7614 3 8 3C5.23858 3 3 5.23858 3 8C3 10.7614 5.23858 13 8 13Z" stroke="black" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M5 5L11 11" stroke="black" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>
+</svg>