fix(display): Fix circles not being round

Not sure why I didn't do this right away, but using 1.95 makes the
circles look much better.  Using 2 leads to a small artifact on the
right side so we have to stay slightly below...

epicardium/drivers/display/api.c

@@ -277,7 +277,7 @@ int epic_disp_circ(
 	uint8_t r, g, b;
 	rgb565_to_rgb888(color, &r, &g, &b);
 
-	ctx_arc(epicardium_ctx, x, y, rad, 0.0f, CTX_PI * 1.85, 0);
+	ctx_arc(epicardium_ctx, x, y, rad, 0.0f, CTX_PI * 1.95, 0);
 
 	switch (fillstyle) {
 	case FILLSTYLE_EMPTY: