Feat/Health check tooltip

ftl/core/deck-config.ftl

@@ -560,6 +560,8 @@ deck-config-compute-optimal-retention-tooltip =
     if it significantly differs from 0.9, it's a sign that the time you've allocated each day is either too low
     or too high for the amount of cards you're trying to learn. This number can be useful as a reference, but it
     is not recommended to copy it into the desired retention field.
+deck-config-health-check-tooltip =
+    This will show a warning if FSRS struggles to predict your pattern of rating.
 
 deck-config-compute-optimal-retention = Compute minimum recommended retention
 deck-config-predicted-optimal-retention = Minimum recommended retention: { $num }

ts/routes/deck-options/FsrsOptions.svelte

@@ -336,7 +336,7 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
     {/if}
 
     <SwitchRow bind:value={$healthCheck} defaultValue={false}>
-        <SettingTitle on:click={() => openHelpModal("deckConfigHealthCheck")}>
+        <SettingTitle on:click={() => openHelpModal("healthCheck")}>
             <GlobalLabel title={tr.deckConfigHealthCheck()} />
         </SettingTitle>
     </SwitchRow>

ts/routes/deck-options/FsrsOptionsOuter.svelte

@@ -59,6 +59,11 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
             help: tr.deckConfigComputeOptimalRetentionTooltip4(),
             sched: HelpItemScheduler.FSRS,
         },
+        healthCheck: {
+            title: tr.deckConfigHealthCheck(),
+            help: tr.deckConfigHealthCheckTooltip(),
+            sched: HelpItemScheduler.FSRS,
+        },
     };
     const helpSections: HelpItem[] = Object.values(settings);