feat(script): Separate appendix table enumeration

Use A1..A<n> table references for appendix tables.

scoping_review.qmd

@@ -11,6 +11,14 @@ geometry:
 lang: en
 title: Addressing Inequalities in the World of Work
 subtitle: Scoping Review on 'What Works'
+crossref:
+  custom:
+    - kind: float
+      key: apptbl
+      latex-env: apptbl
+      reference-prefix: Table A
+      space-before-numbering: false
+      latex-list-of-description: Appendix Table
 ---
 
 ```{python}
@@ -459,7 +467,7 @@ to arrive at a ranking between 2.0 and 5.0 respectively.
 Similarly, the studies are ranked for internal validity using the study design,
 with only quasi-experimental and experimental studies receiving similar rankings between 2.0 and 5.0 depending on the individually applied methods due to their quantifiability,
 while observational and qualitative studies go without an internal validity rank (0.0) due to the more contextual nature of their analyses.
-For a full list of validity ranks, see @sec-appendix-validity-rankings.
+For a full list of validity ranks, see @apptbl-validity-external and @apptbl-validity-internal.
 
 ## Data
 
@@ -1777,9 +1785,9 @@ while relying on indicators for measurement which are flexible yet overlapping e
 
 {{< pagebreak >}}
 
-# Appendix
+# Appendix {.appendix .unnumbered}
 
-## Full search query
+## Full search query {.unnumbered}
 
 ```{python}
 #| label: full-search-query
@@ -1796,7 +1804,9 @@ print(f"""
 """)
 ```
 
-## Validity rankings {#sec-appendix-validity-rankings}
+## Validity rankings {#sec-appendix-validity-rankings .unnumbered}
+
+::: {#apptbl-validity-external}
 
 | Representativeness                          | Ranking |
 | ---                                         | ---     |
@@ -1805,24 +1815,31 @@ print(f"""
 | nationally representative survey/dataset    | 4.0     |
 | census-based dataset                        | 5.0     |
 
-: External validity ranking. Adapted from @Maitrot2017.
+External validity ranking. Adapted from @Maitrot2017.
+
+:::
+
+::: {#apptbl-validity-internal}
 
 | Method                                         | Ranking |
 | ---                                            | ---     |
-| ordinary least squares                         | 2.0     |
+| ordinary least squares & fixed-effects         | 2.0     |
 | discontinuity matching                         | 3.0     |
 | difference in difference (& triple difference) | 3.0     |
 | propensity score matching                      | 3.5     |
 | instrumental variable                          | 4.0     |
+| general method of moments                      | 4.0     |
 | regression discontinuity                       | 4.5     |
 | randomised control trial                       | 5.0     |
 
-: Internal validity ranking. Adapted from @Maitrot2017.
+Internal validity ranking. Adapted from @Maitrot2017.
 
-## Extraction matrix
+:::
+
+## Extraction matrix {.unnumbered}
 
 ```{python}
-#| label: tbl-extraction-matrix
+#| label: apptbl-extraction-matrix
 #| tbl-cap: Extraction matrix
 bib_df
 ```