Localize activity heatmap (except tooltip) (#24131)

The calculation of the total sum is moved to the backend so a full HTML
string could be sent.


![image](https://user-images.githubusercontent.com/20454870/232112381-c11d896b-ba47-40f8-b2a3-71cf4b3208de.png)

- Closes #10669
- 2nd attempt (the first was in #21570)

---------

Signed-off-by: Yarden Shoham <git@yardenshoham.com>
Co-authored-by: Giteabot <teabot@gitea.io>

web_src/js/features/heatmap.js

@@ -18,11 +18,15 @@ export function initHeatmap() {
       return {date: new Date(v), count: heatmap[v]};
     });
 
+    // last heatmap tooltip localization attempt https://github.com/go-gitea/gitea/pull/24131/commits/a83761cbbae3c2e3b4bced71e680f44432073ac8
     const locale = {
       months: new Array(12).fill().map((_, idx) => translateMonth(idx)),
       days: new Array(7).fill().map((_, idx) => translateDay(idx)),
       contributions: 'contributions',
-      no_contributions: 'No contributions',
+      contributions_in_the_last_12_months: el.getAttribute('data-locale-total-contributions'),
+      no_contributions: el.getAttribute('data-locale-no-contributions'),
+      more: el.getAttribute('data-locale-more'),
+      less: el.getAttribute('data-locale-less'),
     };
 
     const View = createApp(ActivityHeatmap, {values, locale});