Update to UI and Framework Icons (#9468)

This is an update to 82 Zed UI and file_icons to improve icon legibility
and align contributed file_icons to the general icon system styling.
From review it appears they're 2px larger in width and height but gpui
render scaling is at play. The original icons were designed at 14x14 to
be viewed at that size, but the ui_font_size now controls this so
they've been updated to the default of 16x16 for optimum fidelity.

![CleanShot 2024-03-17 at 16 20
13@2x](https://github.com/zed-industries/zed/assets/1648941/4151c631-78e6-43a8-914f-37b00f43e130)

Release Notes:

- Updated various UI and file icons for consistency.

assets/icons/file_icons/audio.svg

@@ -1,6 +1,4 @@
-<svg width="14" height="14" viewBox="0 0 14 14" fill="none" xmlns="http://www.w3.org/2000/svg">
-<path d="M7 11C5.46973 11 4.1268 11.1873 3.31522 11.3327C2.94367 11.3992 2.60079 11.0563 2.66733 10.6848C2.81266 9.8732 3 8.53027 3 7C3 5.8387 2.89211 4.78529 2.77656 3.99011C2.73589 3.71017 3.19546 3.51715 3.36119 3.7464C4.09612 4.76304 5.23301 6.23301 6.5 7.5C7.76699 8.76699 9.23696 9.90388 10.2536 10.6388C10.4828 10.8045 10.2898 11.2641 10.0099 11.2234C9.21472 11.1079 8.1613 11 7 11Z" stroke="black" stroke-width="1.25" stroke-linecap="round" stroke-linejoin="round"/>
-<path d="M12.365 3.8478L10.3381 1.82088" stroke="black" stroke-opacity="0.3" stroke-width="1.25" stroke-linecap="round"/>
-<path d="M11.3516 7.36803L6.64062 2.64155" stroke="black" stroke-opacity="0.6" stroke-width="1.25" stroke-linecap="round"/>
-<rect x="2.72266" y="8.73828" width="3.58525" height="2.72899" rx="0.5" transform="rotate(45 2.72266 8.73828)" fill="black"/>
+<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M9.20721 10.8551C7.67694 10.8551 6.33401 11.0424 5.52243 11.1878C5.15088 11.2543 4.808 10.9114 4.87454 10.5399C5.01987 9.72825 5.20721 8.38532 5.20721 6.85505C5.20721 5.69375 5.09932 4.64034 4.98377 3.84516C4.9431 3.56522 5.40267 3.3722 5.5684 3.60145C6.30333 4.61809 7.44022 6.08806 8.70721 7.35505C9.9742 8.62204 11.4442 9.75893 12.4608 10.4939C12.69 10.6596 12.497 11.1192 12.2171 11.0785C11.4219 10.963 10.3685 10.8551 9.20721 10.8551Z" fill="black" stroke="black" stroke-width="1.25" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M7.11129 10.6816L5.28324 8.85355C5.08798 8.65829 4.7714 8.65829 4.57613 8.85355L3.35355 10.0761C3.15829 10.2714 3.15829 10.588 3.35355 10.7832L5.1816 12.6113C5.37686 12.8066 5.69345 12.8066 5.88871 12.6113L7.11129 11.3887C7.30655 11.1934 7.30655 10.8769 7.11129 10.6816Z" fill="black"/>
 </svg>