fix breakpoint sizes

fixes #44550

src/vs/workbench/parts/debug/browser/media/breakpoint-disabled-dark.svg

-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><defs><style>.icon-canvas-transparent,.icon-vs-out{fill:#252526;}.icon-canvas-transparent{opacity:0;}.icon-disabled-grey{fill:#8a8a8a;}</style></defs><title>Breakpoint_disabled_16xMD</title><g id="canvas"><path class="icon-canvas-transparent" d="M16,0V16H0V0Z"/></g><g id="outline" style="display: none;"><path class="icon-vs-out" d="M14,8A6,6,0,1,1,8,2,6.007,6.007,0,0,1,14,8Z"/></g><g id="iconBg"><path class="icon-disabled-grey" d="M13,8A5,5,0,1,1,8,3,5,5,0,0,1,13,8Z"/></g></svg>
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+<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd" fill-opacity="0.8"><g fill="#5A5A5A"><circle cx="8" cy="8" r="5"/></g></g></svg>
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src/vs/workbench/parts/debug/browser/media/breakpoint-disabled.svg

-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><defs><style>.icon-canvas-transparent,.icon-vs-out{fill:#f6f6f6;}.icon-canvas-transparent{opacity:0;}.icon-disabled-grey{fill:#848484;}</style></defs><title>Breakpoint_disabled_16xMD</title><g id="canvas"><path class="icon-canvas-transparent" d="M16,0V16H0V0Z"/></g><g id="outline" style="display: none;"><path class="icon-vs-out" d="M14,8A6,6,0,1,1,8,2,6.007,6.007,0,0,1,14,8Z"/></g><g id="iconBg"><path class="icon-disabled-grey" d="M13,8A5,5,0,1,1,8,3,5,5,0,0,1,13,8Z"/></g></svg>
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+<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd" fill-opacity="0.6"><g fill="#6C6C6C"><circle cx="8" cy="8" r="5"/></g></g></svg>
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src/vs/workbench/parts/debug/browser/media/breakpoint-unverified-dark.svg

-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><defs><style>.icon-canvas-transparent,.icon-vs-out{fill:#252526;}.icon-canvas-transparent{opacity:0;}.icon-vs-red{fill:#8a8a8a;}</style></defs><title>BreakpointUnverified_16xMD</title><g id="canvas"><path class="icon-canvas-transparent" d="M16,0V16H0V0Z"/></g><g id="outline" style="display: none;"><path class="icon-vs-out" d="M14,8A6,6,0,1,1,8,2,6.007,6.007,0,0,1,14,8Z"/></g><g id="iconBg"><path class="icon-vs-red" d="M8,3a5,5,0,1,0,5,5A5,5,0,0,0,8,3Zm0,9a4,4,0,1,1,4-4A4,4,0,0,1,8,12Z"/></g></svg>
+<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g stroke="#5A5A5A" stroke-width="3" stroke-opacity="0.8"><circle cx="8" cy="8" r="4"/></g></g></svg>
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src/vs/workbench/parts/debug/browser/media/breakpoint-unverified.svg

-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><defs><style>.icon-canvas-transparent,.icon-vs-out{fill:#f6f6f6;}.icon-canvas-transparent{opacity:0;}.icon-vs-red{fill:#848484;}</style></defs><title>BreakpointUnverified_16xMD</title><g id="canvas"><path class="icon-canvas-transparent" d="M16,0V16H0V0Z"/></g><g id="outline" style="display: none;"><path class="icon-vs-out" d="M14,8A6,6,0,1,1,8,2,6.007,6.007,0,0,1,14,8Z"/></g><g id="iconBg"><path class="icon-vs-red" d="M8,3a5,5,0,1,0,5,5A5,5,0,0,0,8,3Zm0,9a4,4,0,1,1,4-4A4,4,0,0,1,8,12Z"/></g></svg>
+<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g stroke="#6C6C6C" stroke-width="3" stroke-opacity="0.6"><circle cx="8" cy="8" r="4"/></g></g></svg>
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