Fix data bugs in literature and SVG Files

[saraedum]

some entries, e.g., https://github.com/echemdb/website/blob/main/literature/jovic_1999_cyclic_247/jovic_1999_cyclic_247_p3_4.yaml#L57 seem to be incomplete.

We should probably add some proper input validation with a schema if we think that schema is now mostly stable.

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Fix the following issues in all files:
YAML

• Components
  • Are the entries complete
  • Use commonly used names "HClO4" instead of "perchloric acid" unless it is a more complex organic molecule such as pyridine
  • Concentration available
  • In the field type use: acid, base, salt, solvent (replace alkaline with base)
• Linked measurements should be nested as 'techniques` in source unless another measurement is directly linked to the shown CV
• electrolyte concentration: Use mol / l as unit instead of M (only relevant for thos under revision)

SVG

• make sure the units on y1, y2, etc are compliant with astropy units (required for Remove automatic fixing of unit spellings svgdigitizer#95)

Still under revision:

• wang_1997_lateral_1 #51
• wang_1996_ordered_6672 #52
• wandlowski_1996_structural_10277 #53
• ocko_1997_halide_55 #58 (SVG not yet checked)
• lipkowski_1998_ionic_2875 #80
• mello_2018_bromide_18562 #82
• mello_2018_understanding_J3045 #91

Already included literature

• alves_2011_electrochemistry_6010
• briega-martos_2021_cation_XXX
• endo_1999_in-situ_19
• engstfeld_2018_polycrystalline_17743
• gomez-marin_2012_surface_558
• hamad_2003_electrosorption_211
• horswell_2004_a_10970
• jovic_1999_cyclic_247
• kerner_2002_measurement_2055
• li_2000_chronocoulometric_95
• nakamura_2011_structure_165433
• nakamura_2014_structural_22136
• pajkossy_1996_impedance_209
• pajkossy_2001_double_3063
• rehim_1998_electrochemical_1103
• shi_1996_chloride_225
• zei_1991_the_295

Batch fixing (when all files are merged)

• YAML: Remove all comments (Except for that at the top of document - see below)
• YAML: Remove all empty entries (recursively)
• YAML: Add a comment at the very top that states:
  • This is part of the EchemDB.
  • Link to our homepage.
  • Link to example YAML. (ommited)
• SVG: replace mV/s to mV / s
• move comment and simultaneous measurement to SVG file
• always include f in the filenames to designate the figure
• Add https://doi.org/ to entry doi
• Add https://www. to entry url
• Add version: 1 to all yaml files.
• Change DOI to URL
• Remove figure description from YAML (these information are now included in the SVG)
• Link curve with curve label in SVG where necessary when the following message appears during digitization with svgdigitizer
• Change source.bib to source.citation_key
• Change curator to curation

Finalize

• Batch Fix all issues
• Fix doctests which include alves and engstfeld
• Fix URL and DOI in cv_entry.md

[DunklesArchipel]

Overall #102 Addresses the majority and most critical issues.

Some entries might have to be adapted. For example, often the purity of the electrolyte components is nested under source instead of grade.