Add sparklines

[marvinruder]

• Show sparkline in stock row, stock details with link to Yahoo Finance page
• Save price information in database
• Fetch currency, all price-related information from Yahoo Finance
• Validate currency when fetching price targets
• Document use of ticker as identifier for Yahoo Finance
• Improve clearing fetched data from stocks
• Allow not to send a Signal message when updating a stock
• Improve comparing stock values for equality when updating
• Harmonize fetching JSON from data providers
• Escape URL parameters
• Improve formatting of market capitalization, analyst information
• Remove redundant eslint plugin fork
• Fix issues with experimental linting rules for React Compiler

[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
✅ +0.00% (target: +0.00%)	✅ 100.00% (target: 100.00%)

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (4aa3de4)	10850	10850	100.00%
Head commit (4308a4e)	10939 (+89)	10939 (+89)	100.00% (+0.00%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#1312)	147	147	100.00%

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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