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/python.svg

@@ -1,6 +1,6 @@
-<svg width="14" height="14" viewBox="0 0 14 14" fill="none" xmlns="http://www.w3.org/2000/svg">
-<path d="M6.18452 1.9164C5.01625 1.9164 3.98489 2.77625 3.91991 3.9468H3.72024C2.81569 3.9468 2 4.63733 2 5.587V7.1098C2 8.05947 2.81569 8.75 3.72024 8.75H4.33631C4.67376 8.75 5.02976 8.48561 5.02976 8.06155C5.02976 7.46058 5.51694 6.9734 6.11791 6.9734H7.27976C8.18431 6.9734 9 6.28288 9 5.3332V4.0642C9 2.83419 7.93913 1.9164 6.73214 1.9164H6.18452Z" stroke="black" stroke-width="1.25"/>
-<path d="M7.79613 12.0836C8.97889 12.0836 10.0103 11.2025 10.0702 10.0191H10.2738C11.1885 10.0191 12 9.31459 12 8.36187V6.8135C12 5.86077 11.1885 5.15625 10.2738 5.15625H9.65439C9.30991 5.15625 8.96057 5.42749 8.96057 5.84577C8.96057 6.46262 8.46051 6.96268 7.84365 6.96268H6.69494C5.78027 6.96268 4.96875 7.6672 4.96875 8.61993V9.91023C4.96875 11.148 6.02678 12.0836 7.24554 12.0836H7.79613Z" stroke="black" stroke-width="1.25"/>
-<circle cx="6.03975" cy="3.9167" r="0.633501" fill="black"/>
-<circle cx="7.92285" cy="10.0793" r="0.670898" fill="black"/>
+<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M7.18452 2.91638C6.01625 2.91638 4.98489 3.77623 4.91991 4.94678H4.72024C3.81569 4.94678 3 5.63731 3 6.58698V8.10978C3 9.05945 3.81569 9.74998 4.72024 9.74998H5.33631C5.67376 9.74998 6.02976 9.48559 6.02976 9.06153C6.02976 8.46056 6.51694 7.97338 7.11791 7.97338H8.27976C9.18431 7.97338 10 7.28286 10 6.33318V5.06418C10 3.83417 8.93913 2.91638 7.73214 2.91638H7.18452Z" stroke="black" stroke-width="1.5"/>
+<path d="M8.79613 13.0836C9.97889 13.0836 11.0103 12.2025 11.0702 11.0191H11.2738C12.1885 11.0191 13 10.3146 13 9.36187V7.8135C13 6.86077 12.1885 6.15625 11.2738 6.15625H10.6544C10.3099 6.15625 9.96057 6.42749 9.96057 6.84577C9.96057 7.46262 9.46051 7.96268 8.84365 7.96268H7.69494C6.78027 7.96268 5.96875 8.6672 5.96875 9.61993V10.9102C5.96875 12.148 7.02678 13.0836 8.24554 13.0836H8.79613Z" stroke="black" stroke-width="1.5"/>
+<path d="M7.20312 6.01758C7.64323 6.01758 8 5.6608 8 5.2207C8 4.7806 7.64323 4.42383 7.20312 4.42383C6.76302 4.42383 6.40625 4.7806 6.40625 5.2207C6.40625 5.6608 6.76302 6.01758 7.20312 6.01758Z" fill="black"/>
+<path d="M8.79687 11.5939C9.23698 11.5939 9.59375 11.2372 9.59375 10.7971C9.59375 10.357 9.23698 10.0002 8.79687 10.0002C8.35677 10.0002 8 10.357 8 10.7971C8 11.2372 8.35677 11.5939 8.79687 11.5939Z" fill="black"/>
 </svg>