Refactor SVG gradients and IDs for consistency and clarity

- Updated gradient IDs in google_chrome_icon.svg to be more descriptive.
- Refactored gradient IDs in grafana.svg for better identification.
- Changed gradient IDs in homebridge.svg to follow a consistent naming convention.
- Modified gradient IDs in jellyfin.svg for clarity and consistency.
- Updated gradient IDs in shadoll.svg to avoid conflicts.
- Renamed ID in tesla.svg for better identification.
- Enhanced svg-cleanup.js to fix single-letter ID conflicts by prefixing them with the filename, improving SVG file integrity.

public/images/flags/us-tn.svg

@@ -1,5 +1,4 @@
 <svg version="1.0" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="100%" height="100%" viewBox="0,0 240,144">
-	<desc>Flag of Tenessee, United States</desc>
 	<rect width="222" height="144" fill="#c00"/>
 	<rect x="222" width="3" height="144" fill="#fff"/>
 	<rect x="225" width="15" height="144" fill="#002d65"/>
@@ -7,16 +6,16 @@
 		<circle r="39" fill="#fff"/>
 		<circle r="36" fill="#002d65"/>
 		<g id="star" transform="rotate(18) translate(0,18.5)" fill="#fff">
-			<g id="c">
-				<path id="t" d="M 0,-17 V 0 H 8.5" transform="rotate(18 0,-17)"/>
-				<use xlink:href="#t" transform="scale(-1,1)"/>
+			<g id="us-tn_c">
+				<path id="us-tn_t" d="M 0,-17 V 0 H 8.5" transform="rotate(18 0,-17)"/>
+				<use xlink:href="#us-tn_t" transform="scale(-1,1)"/>
 			</g>
-			<use xlink:href="#c" transform="rotate(72)"/>
-			<use xlink:href="#c" transform="rotate(144)"/>
-			<use xlink:href="#c" transform="rotate(216)"/>
-			<use xlink:href="#c" transform="rotate(288)"/>
+			<use xlink:href="#us-tn_c" transform="rotate(72)"/>
+			<use xlink:href="#us-tn_c" transform="rotate(144)"/>
+			<use xlink:href="#us-tn_c" transform="rotate(216)"/>
+			<use xlink:href="#us-tn_c" transform="rotate(288)"/>
 		</g>
 		<use xlink:href="#star" transform="rotate(120)"/>
 		<use xlink:href="#star" transform="rotate(240)"/>
 	</g>
-</svg>
+</svg>