Use only S&P500 in charts and remove list view decimals

[brianlove]

Use only the S&P 500 as a comparison group in the detail view charts (closes #392). Remove decimal points from percentages in the list view (closes #399).

[github-actions[bot]]

No need for rebasing :+1: behind_count is 0 ahead_count is 1

[github-actions[bot]]

☂️ Python Coverage

current status: ✅

Overall Coverage

Lines	Covered	Coverage	Threshold	Status
595	424	71%	0%	🟢

New Files

No new covered files...

Modified Files

No covered modified files...

updated for commit: 12df91d by action🐍

[github-actions[bot]]

JavaScript Coverage

Summary

Lines	Statements	Branches	Functions
	67.78% (404/596)	55.81% (216/387)	69.18% (128/185)

Modified Files • (67%)

File	% Stmts	% Branch	% Funcs	% Lines	Uncovered Line #s
All files	67.78	55.81	69.18	67.55
components	63.73	55.3	63.84	63.27
CellStat.jsx	100	84.61	100	100	64, 76–79
DetailViewPatents.jsx	0	0	0	0	16–227
DetailViewPublications.jsx	0	0	0	0	16–153
static_data	79.59	76.19	78.26	77.77
table_columns.js	78.72	76.19	78.26	76.74	215–323, 532–533